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Your search returned 8887 results.
Abelia chinensis  - Chinese abelia
Abelia × grandiflora  - glossy abelia
Abeliophyllum distichum  - white forsythia
Abelmoschus manihot  - sunset huskmallow
Abelmoschus moschatus  - musk mallow
Abies balsamea  - balsam fir
Abies balsamea 'Jamy'  - balsam fir
Abies balsamea 'Nana'  - balsam fir
Abies concolor  - white fir
Abies firma  - momi fir
Abies fraseri  - Fraser fir
Abies grandis  - grand fir
Abies homolepis  - Nikko fir
Abies koreana  - Korean fir
Abies nordmanniana  - Caucasian fir
Abies nordmanniana 'Brandt'  - Caucasian fir
Abies pinsapo  - Spanish fir
Abies pinsapo 'Horstmann'  - Spanish fir
Abutilon 'Bartley Schwarz'  - flowering-maple
Abutilon × hybridum  - flowering-maple
Abutilon × hybridum 'Bella Red'  - flowering-maple
Abutilon 'Moonchimes'  - flowering-maple
Abutilon pictum 'Gold Dust'  - flowering-maple
Acacia cognata 'Mini Cog'  - river wattle
Acacia koa  - koa
Acacia redolens  - black cat claw
Acalypha hispida  - red hot cat's tail
Acalypha wilkesiana  - Jacob's coat
Acantholimon ulicinum  - prickly thrift
Acanthus hungaricus  - bear's breeches
Acanthus mollis  - bear's breeches
Acanthus mollis 'Oak Leaf'  - bear's breeches
Acanthus montanus  - mountain thistle
Acanthus spinosus  - bear's breeches
Acanthus 'Summer Beauty'  - bear's breeches
Acanthus 'Whitewater'  - bear's breeches
Acca sellowiana  - pineapple guava
Acer buergerianum  - trident maple
Acer campestre  - hedge maple   ( POM )
Acer capillipes  - snakebark maple
Acer cappadocicum  - cappadocian maple
Acer carpinifolium  - hornbeam maple
Acer caudatifolium  - snakebark maple
Acer cissifolium  - ivy-leaved maple
Acer × conspicuum 'Phoenix'  - snakebark maple
Acer davidii  - snakebark maple
Acer × freemanii 'Armstrong'  - Freeman maple
Acer × freemanii 'Marmo'  - Freeman maple
Acer griseum  - paperbark maple   ( POM )
Acer japonicum  - full moon maple
Acer japonicum 'Aconitifolium'  - full moon maple
Acer japonicum 'Green Cascade'  - full moon maple
Acer japonicum 'O-isami'  - full moon maple
Acer japonicum 'Vitifolium'  - full moon maple
Acer macrophyllum  - bigleaf maple
Acer maximowiczianum  - Nikko maple
Acer miyabei  - maple
Acer miyabei 'Morton' STATE STREET  - miyabe maple   ( POM )
Acer monspessulanum  - Montpellier maple
Acer negundo  - boxelder
Acer oliverianum  - Chinese maple
Acer palmatum  - Japanese maple
Acer palmatum 'Arakawa'  - Japanese maple
Acer palmatum 'Beni-kawa'  - Japanese maple
Acer palmatum 'Beni-tsukasa'  - Japanese maple
Acer palmatum 'Bloodgood'  - Japanese maple
Acer palmatum 'Burgundy Lace'  - Japanese maple
Acer palmatum 'Butterfly'  - Japanese maple
Acer palmatum 'Fall's Fire'  - Japanese maple
Acer palmatum 'Germaine's Gyration'  - Japanese maple   ( POM )
Acer palmatum 'Higasayama'  - Japanese maple
Acer palmatum 'Hogyoku'  - Japanese maple
Acer palmatum 'Katsura'  - Japanese maple   ( POM )
Acer palmatum 'Murasaki-hime'  - Japanese maple
Acer palmatum 'Nishiki Gawa'  - Japanese maple
Acer palmatum 'Nuresagi'  - Japanese maple
Acer palmatum 'Omurayama'  - Japanese maple
Acer palmatum 'Osakazuki'  - Japanese maple
Acer palmatum 'Oshio-beni'  - Japanese maple
Acer palmatum 'Red Select'  - Japanese maple
Acer palmatum 'Sango-kaku'  - Japanese maple
Acer palmatum 'Satsuki-beni'  - Japanese maple
Acer palmatum 'Shaina'  - Japanese maple
Acer palmatum 'Sharp's Pygmy'  - Japanese maple
Acer palmatum 'Sherwood Flame'  - Japanese maple
Acer palmatum 'Shindeshojo'  - Japanese maple
Acer palmatum 'Shishigashira'  - Japanese maple
Acer palmatum 'Suminagashi'  - Japanese maple
Acer palmatum 'Trompenburg'  - Japanese maple
Acer palmatum 'Tsuma-gaki'  - Japanese maple
Acer palmatum 'Utsu-semi'  - Japanese maple
Acer palmatum var. dissectum  - Japanese maple
Acer palmatum 'Villa Taranto'  - Japanese maple
Acer pensylvanicum  - snakebark maple
Acer pentaphyllum  - maple
Acer pictum  - painted maple
Acer pictum subsp. mono  - painted maple
Acer platanoides  - Norway maple
Acer platanoides 'Deborah'  - Norway maple
Acer pseudoplatanus  - sycamore maple
Acer pseudosieboldianum  - Korean maple
Acer rubrum  - red maple
Acer rubrum 'Columnare'  - red maple
Acer rubrum 'Karpick'  - red maple
Acer rubrum 'Northwood'  - red maple
Acer saccharinum  - silver maple
Acer saccharum  - sugar maple
Acer saccharum 'Bailsta' FALL FIESTA  - sugar maple   ( POM )
Acer saccharum 'Goldspire'  - sugar maple
Acer shirasawanum 'Aureum'  - full moon maple
Acer tataricum  - tatarian maple
Acer tataricum subsp. semenovii  - Turkestan shrub maple
Acer triflorum  - three-flowered maple   ( POM )
Acer truncatum  - shantung maple   ( POM )
Achillea ageratifolia  - Greek yarrow
Achillea distans  - Alps yarrow
Achillea filipendulina  - fern-leaf yarrow
Achillea filipendulina 'Altgold'  - fern-leaf yarrow
Achillea 'Martina'  - yarrow
Achillea sibirica  - Siberian yarrow
Achillea tomentosa 'Aurea'  - woolly yarrow
Achimenes (group)  - hot water plant
Aciphylla aurea  - golden spaniard
Acoelorrhaphe wrightii  - paurotis palm
Aconitum carmichaelii 'Arendsii'  - azure monkshood
Aconitum 'Eleonara'  - monkshood
Aconitum hemsleyanum  - climbing monk's hood
Aconitum napellus  - monkshood
Aconitum volubile  - monkshood
Acorus calamus  - sweet flag
Acorus gramineus  - grassy-leaved sweet flag
Acorus gramineus 'Minimus Aureus'  - grassy-leaved sweet flag
Acorus gramineus 'Oborozuki'  - grassy-leaved sweet flag
Acorus gramineus 'Ogon'  - grassy-leaved sweet flag
Acorus gramineus 'Pusillus Minimus Aureus'  - grassy-leaved sweet flag
Acorus gramineus 'Variegatus'  - grassy-leaved sweet flag
Actaea 'Chocoholic'  - bugbane
Actaea dahurica  - bugbane
Actaea pachypoda  - white baneberry
Actaea 'Pink Spire'  - bugbane
Actaea podocarpa  - bugbane
Actaea racemosa  - black cohosh
Actaea rubra  - red baneberry
Actaea simplex  - bugbane
Actinidia arguta  - hardy kiwi
Actinidia arguta 'Issai'  - hardy kiwi vine
Actinidia deliciosa  - kiwifruit
Actinidia kolomikta  - variegated kiwi vine
Actinidia kolomikta 'Arctic Beauty'  - variegated kiwi vine
Adansonia digitata  - baobab
Adenium obesum  - desert rose
Adenophora 'Amethyst'  - ladybells
Adenophora liliifolia  - ladybells
Adiantum capillus-veneris  - maidenhair fern
Adiantum hispidulum  - rough maidenhair fern
Adiantum pedatum  - Northern maidenhair fern
Adiantum raddianum  - delta maidenhair fern
Adina rubella  - Chinese buttonbush
Adonidia merrillii  - Manila palm
Aechmea fasciata  - urn plant
Aeonium undulatum  - stalked aeonium
Aeschynanthus radicans  - lipstick plant
Aesculus californica  - California buckeye
Aesculus × carnea  - red horse chestnut
Aesculus × carnea 'Briotii'  - red horse chestnut
Aesculus × carnea 'Marginata'  - red horse chestnut
Aesculus chinensis  - Chinese horse chestnut
Aesculus flava  - yellow buckeye
Aesculus glabra  - Ohio buckeye
Aesculus glabra 'Nana'  - Ohio buckeye
Aesculus hippocastanum  - horse chestnut
Aesculus indica 'Sydney Pearce'  - Indian horse chustnut
Aesculus parviflora  - bottlebrush buckeye   ( POM )
Aesculus parviflora var. serotina  - bottlebrush buckeye
Aesculus pavia  - red buckeye   ( POM )
Aesculus sylvatica  - painted buckeye
Afrocarpus gracilior  - African fern pine
Agalinis tenuifolia  - slenderleaf false foxglove
Agapanthus africanus  - African lily
Agapanthus 'AMBIC001' TWISTER  - lily of the Nile
Agapanthus 'Blue Yonder'  - lily of the Nile
Agapanthus 'Cold Hardy White'  - lily of the Nile
Agapanthus 'Galaxy White'  - lily of the Nile
Agapanthus (group)  - lily of the Nile
Agapanthus 'Headbourne Hybrids'  - lily of the Nile
Agapanthus 'Kingston Blue'  - lily of the Nile
Agapanthus 'Rfdd' DOUBLE DIAMOND  - lily of the Nile
Agapanthus 'Summer Skies'  - lily of the Nile
Agastache 'Apricot Sunrise'  - giant hyssop
Agastache 'Ava'  - giant hyssop
Agastache 'Black Adder'  - giant hyssop
Agastache 'Blue Bayou'  - giant hyssop
Agastache 'Blue Boa'  - giant hyssop
Agastache 'Blue Fortune'  - giant hyssop
Agastache 'Bolero'  - giant hyssop
Agastache cana  - hummingbird's mint
Agastache 'Firebird'  - giant hyssop
Agastache foeniculum  - anise hyssop
Agastache KUDOS RED  - dwarf hybrid hyssop
Agastache mexicana 'Sangria'  - Mexican giant hyssop
Agastache nepetoides  - yellow giant hyssop
Agastache 'Pink Pop'  - giant hyssop
Agastache 'Purple Haze'  - giant hyssop
Agastache 'Red Happiness'  - giant hyssop
Agastache rugosa 'Golden Jubilee'  - purple giant hyssop
Agastache rupestris  - threadleaf giant hyssop
Agastache rupestris 'Apache Sunset'  - threadleaf giant hyssop
Agastache 'Summer Breeze'  - giant hyssop
Agastache SUMMER GLOW  - giant hyssop
Agastache 'Summer Love'  - giant hyssop
Agastache 'Tutti-frutti'  - giant hyssop
Agastache 'Violet Vision'  - hummingbird's mint
Agave americana  - American century plant
Agave attenuata  - century plant
Agave 'Blue Glow'  - century plant
Agave bracteosa 'Octopussy'  - century plant
Agave desmetiana  - spineless jade agave
Agave havardiana  - Havard agave
Agave lophantha 'Splendida'  - thorn-crested agave
Agave ovatifolia  - whale's tongue agave
Agave ovatifolia 'Frosty Blue'  - whale's tongue agave
Agave ovatifolia 'Vanzie'  - whale's tongue agave
Agave parryi  - Parry's agave
Agave parryi var. truncata  - Parry's agave
Agave schidigera  - century plant
Agave shawii  - Shaw's agave
Agave victoriae-reginae  - Queen Victoria agave
Ageratina altissima  - white snakeroot
Ageratum houstonianum  - floss flower
Ageratum houstonianum 'Blue Horizon'  - floss flower   ( POM )
Aglaia edulis  - chu-lan tree
Aglaia odorata  - chu-lan tree
Aglaonema commutatum  - Philippine evergreen
Aglaonema 'Cutlass'  - Chinese evegreen
Aglaonema 'Red Gold'  - Chinese evergreen
Aglaonema 'Silver Queen'  - Chinese evergreen
Agrostis palustris NO MOW  - creeping bent grass
Ailanthus altissima  - tree of Heaven
Ajania pacifica  - ajania
Ajuga reptans  - common bugle
Ajuga 'Sparkler'  - bugleweed
Akebia quinata  - chocolate vine
Albizia julibrissin  - silk tree
Albizia saman  - rain tree
Alcea rosea  - hollyhock
Alcea rosea 'Nigra'  - hollyhock
Alcea rosea (single)  - hollyhock
Alcea rugosa  - hollyhock
Alchemilla mollis  - lady's mantle
Alchemilla mollis 'Thriller'  - lady's mantle
Alchemilla sericata 'Gold Strike'  - silky lady's mantle
Aleurites fordii  - tung-oil tree
Aleurites moluccanus  - candlenut tree
Alisma triviale  - northern water plantain
Allamanda cathartica  - golden trumpet
Allamanda schottii  - bush allamanda
Allium altaicum  - onion
Allium 'Ambassador'  - ornamental onion
Allium babingtonii  - wild leek
Allium caeruleum  - ornamental onion
Allium 'Cameleon'  - ornamental onion
Allium cepa  - onion
Allium cernuum  - nodding onion
Allium 'Chivette'  - chives
Allium cristophii  - star of Persia
Allium fistulosum  - scallion
Allium 'Forelock'  - ornamental onion
Allium giganteum  - ornamental onion
Allium 'Globemaster'  - ornamental onion
Allium hookeri var. muliense  - Hooker's onion
Allium karataviense  - ornamental onion
Allium kunthianum  - allium
Allium 'Lavender Bubbles'  - ornamental onion
Allium lusitanicum  - German garlic
Allium 'Millenium'  - ornamental onion
Allium moly  - golden garlic
Allium 'Pink Jewel'  - ornamental onion
Allium × proliferum  - Egyptian walking onion
Allium 'Purple Sensation'  - ornamental onion
Allium sativum  - cultivated garlic
Allium schubertii  - ornamental onion
Allium senescens  - German garlic
Allium senescens 'Blue Eddy'  - German garlic
Allium 'Serendipity'  - ornamental onion
Allium sphaerocephalon  - round-headed leek
Allium stellatum  - prairie onion
Allium 'Sugar Melt'  - ornamental onion
Allium thunbergii 'Ozawa'  - ornamental onion
Allium tuberosum  - garlic chives
Allium ursinum  - wild garlic
Alluaudia dumosa  - alluaudia
Alluaudia humbertii  - alluaudia
Alnus cordata  - Italian alder
Alnus glutinosa  - European alder
Alnus incana  - grey alder
Alnus incana subsp. rugosa  - hazel alder
Alnus japonica  - Japanese alder
Alnus maritima  - seaside alder
Alnus × mayrii  - alder
Alnus serrulata  - hazel alder
Alnus sieboldiana  - alder
Alnus subcordata  - Caucasian alder
Alocasia × amazonica  - elephant's ear
Alocasia × amazonica 'Boa'  - Amazonian elephant's ear
Alocasia × amazonica 'Polly'  - Amazonian elephant's ear
Alocasia 'Frydek'  - elephant's ear
Alocasia (group)  - elephant's ear
Alocasia LOW RIDER  - elephant's ear
Alocasia macrorrhizos  - giant elephant's ear
Alocasia 'Metalhead'  - elephant's ear
Alocasia 'Portora'  - elephant's ear
Alocasia 'Sarian'  - elephant's ear   ( POM )
Aloe aristata  - torch plant
Aloe ferox  - Cape aloe
Aloe harlana  - aloe
Aloe longistyla  - Karoo aloe
Aloe munchii  - large Chimanimani aloe
Aloe PINK BLUSH  - aloe
Aloe rauhii  - aloe
Aloe sabaea  - Yemen tree aloe
Aloe striata  - coral aloe
Aloe suzannae  - aloe
Aloe vera  - aloe
Aloysia citriodora  - lemon verbena
Aloysia virgata  - sweet almond bush
Alpinia galanga  - siamese ginger
Alpinia japonica  - ginger lily
Alpinia zerumbet  - shellplant
Alstroemeria aurea  - lily of the Incas
Alstroemeria 'Casablanca'  - lily of the Incas
Alstroemeria 'Glory of the Andes'  - lily of the Incas
Alstroemeria isabellana  - lily of the Incas
Alstroemeria 'Jupiter'  - lily of the Incas
Alstroemeria 'Koice' INCA ICE  - lily of the Incas
Alstroemeria 'Sweet Laura'  - lily of the Incas
Alstroemeria 'The Third Harmonic'  - lily of the Incas
Alternanthera dentata  - Joseph's coat
Alternanthera ficoidea  - Joseph's coat
Alternanthera PLUM DANDY  - Joseph's coat   ( POM )
Althaea officinalis  - marsh mallow
Alyssum murale  - yellowtuft
Alyssum propinquum  - alyssum
Amaranthus caudatus  - love-lies-bleeding
Amaranthus tricolor  - Joseph's coat
Amelanchier alnifolia 'Regent'  - alder-leaved serviceberry
Amelanchier alnifolia var. pumila  - dwarf serviceberry
Amelanchier arborea  - serviceberry   ( POM )
Amelanchier canadensis  - serviceberry
Amelanchier × grandiflora 'Autumn Brilliance'  - apple serviceberry   ( POM )
Amelanchier laevis  - Allegheny serviceberry
Amelanchier lamarckii  - juneberry
Amelanchier nantucketensis  - Nantucket serviceberry
Amelanchier obovalis  - coastal serviceberry
Amelanchier stolonifera  - running serviceberry
Amorpha canescens  - lead plant
Amorpha fruticosa  - false indigo
Amorpha ouachitensis  - Ouachita Mountain leadplant
Amorphophallus konjac  - Devil's tongue   ( POM )
Ampelopsis brevipedunculata  - amur peppervine
Amsonia 'Blue Ice'  - blue star
Amsonia ciliata  - blue star
Amsonia hubrichtii  - blue star   ( POM )
Amsonia illustris  - shining blue star
Amsonia 'Seaford Skies'  - blue star
Amsonia 'Starstruck'  - blue star
Amsonia tabernaemontana  - blue star   ( POM )
Anagallis monelli  - blue pimpernel
Ananas comosus  - pineapple
Ananas comosus 'Juicy'  - pineapple
Ananas comosus var. variegatus  - variegated pineapple
Anaphalis margaritacea  - pearly everlasting
Anaphalis triplinervis  - pearly everlasting
Anatherum glomeratum  - bushy bluestem
Anatherum ternarium  - splitbeard bluestem
Anchusa azurea  - blue bugloss
Anchusa azurea 'Dropmore'  - blue bugloss
Andropogon gerardi  - Big bluestem
Anemone blanda  - windflower
Anemone canadensis  - windflower
Anemone coronaria  - windflower
Anemone cylindrica  - windflower
Anemone hupehensis  - Japanese thimbleweed
Anemone × lesseri  - windflower
Anemone narcissiflora  - windflower
Anemone nemorosa  - wood anemone
Anemone nemorosa 'Lychette'  - wood anemone
Anemone parviflora  - small-flowered anemone
Anemone 'Red Riding Hood'  - Japanese anemone
Anemone sylvestris  - snowdrop windflower
Anemone tomentosa  - windflower
Anemone virginiana  - thimbleweed
Angelica archangelica  - garden angelica
Angelica atropurpurea  - masterwort
Angelonia angustifolia  - angelonia
Anigozanthos flavidus  - tall kangaroo paw
Anigozanthos 'Joe Joe Red'  - kangaroo paw
Annona muricata  - soursop
Annona reticulata  - custard apple
Anomatheca laxa  - anomatheca
Anredera cordifolia  - heartleaf madeiravine
Antennaria dioica  - pussytoes
Antennaria neglecta  - prairie everlasting
Antennaria parlinii  - ladies' tobacco
Anthemis tinctoria  - golden chamomile
Anthemis tinctoria 'Charme'  - golden chamomile
Anthemis tinctoria 'Kelwayi'  - Dyer's chamomile
Anthemis tinctoria 'Moonlight'  - golden marguerite
Anthericum liliago  - St. Bernard's lily
Anthurium andraeanum  - anthurium
Anthurium crassinervium  - anthurium
Antigonon leptopus  - coral vine
Antirrhinum majus  - snapdragon
Aphelandra squarrosa  - zebra plant
Apios americana  - american potato bean
Apocynum cannabinum  - Indian hemp
Aponogeton distachyos  - Cape pondweed
Aquilegia 'Bunting'  - columbine
Aquilegia caerulea  - columbine
Aquilegia canadensis  - columbine
Aquilegia 'Dove'  - columbine
Aquilegia flabellata  - fan columbine
Aquilegia fragrans  - sweet-scented columbine
Aquilegia glandulosa  - columbine
Aquilegia 'Music Mix'  - columbine
Aquilegia olympica  - columbine
Aquilegia 'Red Hobbit'  - columbine
Aquilegia 'Remembrance'  - columbine
Aquilegia 'Swallowtail'  - columbine
Aquilegia viridiflora  - columbine
Aquilegia vulgaris  - columbine
Arabis alpina  - mountain rockcress
Arabis caucasica  - garden rockcress
Arachis hypogaea  - peanut
Aralia chinensis  - Chinese angelica tree
Aralia cordata  - Japanese spikenard
Aralia cordata 'Sun King'  - Japanese spikenard
Aralia elata  - Japanese angelica tree
Aralia racemosa  - American spikenard   ( POM )
Aralia spinosa  - Devil's walking stick
Araucaria araucana  - monkey-puzzle tree
Araucaria columnaris  - New Caledonian pine
Araucaria heterophylla  - Norfolk Island pine
Arbutus × andrachnoides  - hybrid strawberry tree
Arbutus menziesii  - madrone
Arbutus unedo  - strawberry tree
Arbutus unedo 'Oktoberfest'  - strawberry tree
Arctostaphylos uva-ursi  - common bearberry
Arctotis × hybrida  - African daisy
Ardisia crenata  - hen's eyes
Ardisia elliptica  - shoebutton
Ardisia japonica  - marlberry
Argania spinosa  - Argan tree
Argemone polyanthemos  - prickly poppy
Argyranthemum frutescens  - cobbitty daisy
Argyrocytisus battandieri  - Moroccan broom
Arisaema candidissimum  - striped cobra lily
Arisaema dracontium  - dragon root
Arisaema engleri  - arisaema
Arisaema kishidae 'Silver Pattern'  - Japanese cobra lily
Arisaema kiushianum  - arisaema
Arisaema ringens  - arisaema
Arisaema serratum  - arisaema
Arisaema sikokianum  - Japanese cobra lily
Arisaema thunbergii  - arisaema
Arisaema triphyllum  - jack-in-the-pulpit
Arisarum proboscideum  - mouse plant
Aristea platycaulis  - aristea
Aristolochia clematitis  - birthwort
Aristolochia gigantea  - pelican flower
Aristolochia leuconeura  - birthwort
Aristolochia littoralis  - calico flower
Aristolochia macrophylla  - Dutchman's pipe
Aristolochia tomentosa  - Dutchman's pipe   ( POM )
Armeria maritima  - sea thrift
Armeria maritima 'Alba'  - sea thrift
Armeria 'Nifty Thrifty'  - sea thrift
Armeria trojana  - Turkish alpine thrift
Armoracia rusticana  - horseradish
Arnoglossum atriplicifolium  - pale Indian plantain
Arnoglossum reniforme  - great Indian plantain
Aronia arbutifolia  - chokeberry
Aronia melanocarpa  - black chokeberry
Aronia melanocarpa 'Autumn Magic'  - black chokeberry   ( POM )
Aronia melanocarpa 'Estland'  - black chokeberry
Aronia melanocarpa 'Professor Ed'  - black chokeberry
Aronia melanocarpa var. elata  - black chokeberry
Aronia melanocarpa 'Viking'  - black chokeberry
Aronia × prunifolia  - purple-fruited chokeberry
Artemisia abrotanum  - southernwood
Artemisia absinthium  - wormwood
Artemisia afra  - African wormwood
Artemisia californica 'Canyon Gray'  - California sagebrush
Artemisia capillaris  - wormwood
Artemisia dracunculus  - tarragon
Artemisia dracunculus 'Sativa'  - French tarragon
Artemisia frigida  - silky wormwood
Artemisia ludoviciana  - white sage
Artemisia schmidtiana 'Nana'  - silvermound artemisia
Artemisia 'Silver Lining'  - white sagebrush
Artemisia vulgaris  - mugwort
Arthropodium cirrhatum  - rienga lily
Artocarpus altilis  - breadfruit
Arum italicum  - Italian arum
Aruncus aethusifolius  - goat's beard
Aruncus dioicus  - goat's beard   ( POM )
Aruncus 'Horatio'  - aruncus
Aruncus 'Misty Lace'  - aruncus
Arundina graminifolia  - bamboo orchid
Arundinaria gigantea  - giant cane bamboo
Arundo donax  - giant reed
Asarina procumbens  - trailing snapdragon
Asarum canadense  - wild ginger   ( POM )
Asarum caudatum  - wild ginger
Asarum europaeum  - European wild ginger
Asarum shuttleworthii  - wild ginger
Asarum splendens  - Chinese wild ginger
Asclepias curassavica  - blood flower   ( POM )
Asclepias exaltata  - milkweed
Asclepias hirtella  - prairie milkweed
Asclepias incarnata  - swamp milkweed   ( POM )
Asclepias incarnata 'Soulmate'  - swamp milkweed
Asclepias purpurascens  - purple milkweed
Asclepias quadrifolia  - fourleaf milkweed
Asclepias speciosa  - showy milkweed
Asclepias sullivantii  - prairie milkweed
Asclepias syriaca  - common milkweed
Asclepias tuberosa  - butterfly weed   ( POM )
Asclepias tuberosa subsp. interior  - butterfly milkweed
Asclepias verticillata  - whorled milkweed
Asclepias viridis  - green milkweed
Asimina triloba  - pawpaw   ( POM )
Asparagus densiflorus  - Sprenger's asparagus fern
Asparagus officinalis  - asparagus
Asparagus retrofractus  - Ming fern
Asparagus setaceus  - asparagus fern
Asperula gussonii  - woodruff
Asperula tinctoria  - woodruff
Asphodeline lutea  - king's spear
Asphodelus albus  - white-flowered asphodel
Aspidistra elatior  - cast-iron plant
Asplenium × ebenoides  - walking spleenwort
Asplenium nidus  - bird's nest fern
Asplenium nidus 'Antiquum'  - bird's nest fern
Asplenium platyneuron  - ebony spleenwort
Asplenium scolopendrium  - hart's tongue fern
Asplenium trichomanes  - maidenhair spleenwort
Aster alpinus  - Alpine aster
Aster 'Celeste'  - michaelmas daisy
Aster tataricus  - tartarian aster
Aster tataricus 'Jindai'  - tatarian aster
Asteriscus maritimus  - gold coin daisy
Astilbe chinensis 'Finale'  - Chinese astilbe
Astilbe chinensis var. davidii  - Chinese astilbe
Astilbe chinensis var. pumila  - Chinese astilbe   ( POM )
Astilbe chinensis 'Visions'  - Chinese astilbe
Astilbe 'Delft Lace'  - astilbe
Astilbe 'Erica'  - astilbe
Astilbe 'Federsee'  - astilbe
Astilbe 'Flamingo'  - astilbe
Astilbe japonica  - Florist's spiraea
Astilbe 'Radius'  - astilbe
Astilbe 'Rheinland'  - astilbe
Astilbe simplicifolia  - entire-leaved astilbe
Astilbe 'Snowdrift'  - astilbe
Astilbe 'Sprite'  - astilbe
Astilboides tabularis  - astilboides
Astragalus bisulcatus  - two-grooved milkvetch
Astragalus canadensis  - milk vetch
Astragalus crassicarpus  - ground plum
Astrantia 'Buckland'  - greater masterwort
Astrantia 'Magnum Blush'  - greater masterwort
Astrantia major  - greater masterwort
Astrantia major 'Claret'  - masterwort
Astrantia major 'Roma'  - masterwort
Astrantia major 'Rubra'  - masterwort
Astrantia major 'Ruby Cloud'  - greater masterwort
Astrantia major 'Venice'  - masterwort
Astrantia 'Snow Star'  - masterwort
Astrantia 'Superstar'  - greater masterwort
Astrophytum myriostigma  - bishop's hat
Athyrium asplenioides  - southern lady fern
Athyrium 'Branford Rambler'  - Japanese painted fern
Athyrium filix-femina  - lady fern
Athyrium filix-femina var. angustum  - northern lady fern
Athyrium 'Ghost'  - lady fern   ( POM )
Athyrium niponicum 'Crested Surf'  - Japanese painted fern
Athyrium niponicum var. niponicum  - painted lady fern
Athyrium niponicum var. pictum  - Japanese painted fern
Athyrium 'Ocean's Fury'  - hybrid painted fern
Athyrium otophorum  - eared lady fern
Athyrium 'Silver Slippers'  - Japanese painted fern
Athyrium vidalii  - lady fern
Atriplex hortensis  - mountain spinach
Atropa belladonna  - deadly nightshade
Aucuba japonica  - spotted laurel
Aucuba japonica 'Picturata'  - spotted laurel
Aucuba japonica 'Variegata'  - spotted laurel
Aurinia saxatilis  - basket-of-gold
Aurinia saxatilis 'Gold Dust'  - basket of gold
Averrhoa carambola  - star fruit
Azara microphylla  - boxleaf azara
Azara serrata  - saw toothed azara
Azara serrata ANDEAN GOLD  - saw toothed azara
Azolla filiculoides  - water fern
Baccharis angustifolia  - false willow
Baccharis halimifolia  - eastern baccharis
Baccharis pilularis  - dwarf chapparal-broom
Baccharis pilularis 'Pigeon Point'  - dwarf chapparal-broom
Bambusa ventricosa  - Buddha belly bamboo
Baptisia alba  - false indigo
Baptisia alba var. macrophylla  - white false indigo
Baptisia australis  - blue false indigo   ( POM )
Baptisia australis var. minor  - blue false indigo
Baptisia 'Blueberry Sundae'  - false indigo
Baptisia bracteata  - false indigo
Baptisia 'Chocolate Chip'  - false indigo
Baptisia 'Dutch Chocolate'  - false indigo
Baptisia 'Ivory Towers'  - false indigo
Baptisia lanceolata  - gopherweed
Baptisia 'Lemon Meringue'  - false indigo
Baptisia 'Lunar Eclipse'  - false indigo
Baptisia perfoliata  - false indigo
Baptisia 'Purple Smoke'  - false indigo
Baptisia sphaerocarpa  - yellow wild indigo   ( POM )
Baptisia tinctoria  - wild indigo
Barleria cristata  - Philippine violet
Basella alba  - Malabar spinach
Basella rubra 'Red Stem'  - Ceylon spinach   ( POM )
Bauhinia × blakeana  - Hong Kong orchid tree
Beaucarnea recurvata  - ponytail palm
Beesia deltophylla  - beesia
Begonia 'Art Hodes'  - begonia
Begonia 'Canary Wing'  - begonia   ( POM )
Begonia 'Casper'  - begonia
Begonia FUNKY PINK  - hybrid tuberous begonia
Begonia grandis  - hardy begonia   ( POM )
Begonia 'Green Gold'  - begonia
Begonia 'Gryphon'  - begonia
Begonia masoniana  - iron cross begonia
Begonia 'Penny Lahn'  - begonia
Begonia rex-cultorum  - rex begonia
Begonia 'River Nile'  - begonia
Begonia 'Sinbad'  - angelwing begonia
Begonia 'Sophia'  - angelwing begonia
Begonia sutherlandii  - begonia
Begonia (Tuberosa Group)  - hybrid tuberous begonia
Bellis perennis  - English daisy
Benincasa hispida  - wax gourd
Berberis aquifolium  - holly-leaved barberry
Berberis aquifolium 'Apollo'  - Oregon grape-holly
Berberis aquifolium 'Compacta'  - Oregon grape-holly
Berberis aquifolium 'Orangee Flame'  - Oregon grape-holly
Berberis 'Cally Rose'  - barberry
Berberis darwinii  - Darwin's barberry
Berberis dictyota  - Jepson's Oregon-grape
Berberis replicata  - barberry
Berberis 'Tara' EMERALD CAROUSEL  - Japanese barberry
Berberis thunbergii  - Japanese barberry
Berberis thunbergii 'Aurea'  - Japanese barberry
Berberis thunbergii f. atropurpurea  - Japanese barberry
Berberis thunbergii 'Kobold'  - Japanese barberry
Berberis thunbergii 'Royal Cloak'  - Japanese barberry
Berchemia scandens  - Alabama supplejack
Bergenia ciliata  - winter begonia
Bergenia cordifolia  - pigsqueak
Bergenia crassifolia  - pigsqueak
Bergenia purpurascens  - purple bergenia
Berlandiera lyrata  - chocolate flower
Berlandiera texana  - green eyes
Bertolonia maculata  - jewel plant
Beta vulgaris  - beet
Betula alleghaniensis  - yellow birch
Betula dahurica  - Asian black birch
Betula glandulosa  - birch
Betula lenta  - sweet birch
Betula megrelica  - birch
Betula nigra  - river birch
Betula nigra 'Cully' HERITAGE  - river birch   ( POM )
Betula occidentalis  - water birch
Betula papyrifera  - paper birch
Betula pendula  - European white birch
Betula platyphylla  - Japanese white birch
Betula populifolia  - grey birch
Betula populifolia 'Whitespire'  - Asian white birch
Betula uber  - Virginia round-leaf birch
Betula utilis  - Himalayan birch
Betula utilis var. jacquemontii  - Himalayan birch
Bidens aurea  - Arizona beggarstick
Bignonia capreolata  - cross vine   ( POM )
Bismarckia nobilis  - Bismarck palm
Bistorta officinalis  - meadow bistort
Bixa orellana  - lipsticktree
Blechnum spicant  - deer fern
Blephilia ciliata  - Ohio horsemint
Blephilia hirsuta  - hairy woodmint
Bletilla striata  - Chinese ground orchid
Bletilla striata 'Albostriata'  - Chinese ground orchid
Bletilla striata f. gebina  - Chinese ground orchid
Blighia sapida  - akee
Boehmeria biloba  - false nettle
Boehmeria nivea  - ramie
Boltonia asteroides  - false aster
Boltonia decurrens  - decurrent false aster
Bombax ceiba  - red silk cottontree
Borago officinalis  - borage
Borassus flabellifer  - wine palm
Bougainvillea (group)  - bougainvillea
Bouteloua curtipendula  - sideoats grass
Bouteloua gracilis  - blue grama
Boykinia aconitifolia  - allegheny brookfoam
Brachypodium sylvaticum  - slender false brome
Brachyscome (group)  - Swan River daisy
Brachyscome iberidifolia  - Swan River daisy
Brassica juncea  - Chinese mustard
Brassica oleracea (Botrytis Group)  - Romanesco broccoli / cauliflower
Brassica rapa (Pekinensis Group)  - Chinese cabbage
Brassica rapa (Ruva Group)  - broccoli raab
Breynia disticha  - snowbush
Brickellia eupatorioides  - false boneset
Briza media  - common quaking grass
Broussonetia papyrifera  - paper mulberry
Browallia speciosa  - bush violet
Brugmansia × candida  - angel's trumpet
Brunnera macrophylla  - Siberian bugloss   ( POM )
Brunnera macrophylla 'Alexandria'  - Siberian bugloss
Brunnera macrophylla 'Jack Frost'  - Siberian bugloss   ( POM )
Brunnera macrophylla 'Langtrees'  - Siberian bugloss
Brunnera macrophylla 'Mr. Morse'  - Siberian bugloss
Brunnera macrophylla 'Sea Heart'  - Siberian bugloss
Brunnera 'Silver Charm'  - Siberian bugloss
Buchloe dactyloides  - buffalo grass
Buchloe dactyloides 'Cody'  - buffalo grass
Buddleja alternifolia  - alternate-leaved butterfly bush
Buddleja 'Asian Moon'  - butterfly bush
Buddleja 'Bicolor'  - butterfly bush
Buddleja davidii  - butterfly bush
Buddleja davidii 'Attraction'  - butterfly bush
Buddleja davidii 'Evil Ways'  - butterfly bush
Buddleja davidii 'Nanho Blue'  - butterfly bush
Buddleja davidii 'Royal Red'  - butterfly bush
Buddleja davidii 'White Ball'  - butterfly bush
Buddleja 'Lochinch'  - butterfly bush
Buddleja loricata  - mountain sagewood
Buddleja 'Miss Molly'  - butterfly bush
Buddleja 'Miss Ruby'  - butterfly bush
Buddleja 'Miss Violet'  - butterfly bush
Buddleja nivea  - butterfly bush
Buddleja 'Pink Micro Chip'  - butterfly bush
Buddleja salviifolia  - South African sage wood
Bulbine frutescens  - orange bulbine
Bursera simaruba  - gumbo-limbo
Butea monosperma  - flame of the forest
Butia capitata  - South American jelly palm
Buxus balearica  - Balearic boxwood
Buxus 'Green Gem'  - boxwood
Buxus 'Green Mound'  - boxwood
Buxus 'Green Velvet'  - boxwood   ( POM )
Buxus harlandii  - Harland boxwood
Buxus microphylla  - boxwood
Buxus microphylla var. japonica  - Japanese boxwood
Buxus sempervirens  - common box
Buxus sinica var. insularis  - Korean boxwood
Cabomba caroliniana  - Carolina fanwort
Caesalpinia coriaria  - divi-divi
Caesalpinia gilliesii  - poinciana
Caesalpinia pulcherrima  - pride of barbados
Caladium bicolor  - angel wings
Caladium 'Burning Heart'  - elephant's ear
Calamagrostis × acutiflora  - feather reed grass
Calamagrostis × acutiflora 'Karl Foerster'  - feather reed grass   ( POM )
Calamintha nepeta  - calamint
Calamintha nepeta subsp. nepeta  - calamint   ( POM )
Calamovilfa arcuata  - Cumberland reed grass
Calathea lancifolia  - rattlesnake plant
Calathea makoyana  - peacock plant
Calathea zebrina  - zebra plant
Calendula officinalis  - marigold
Calibrachoa (group)  - million bells
Calla palustris  - water arum
Calliandra haematocephala  - powder puff tree
Callicarpa americana  - beautyberry
Callicarpa bodinieri  - beautyberry
Callicarpa cathayana  - beautyberry
Callicarpa dichotoma  - beautyberry
Callicarpa japonica  - Japanese beautyberry
Callicarpa shikokiana  - shikoku beautyberry
Callicoma serratifolia  - black wattle
Callirhoe alcaeoides  - prairie poppy mallow
Callirhoe alcaeoides 'Logan Calhoun'  - prairie poppy mallow
Callirhoe bushii  - Bush's poppy mallow
Callirhoe digitata  - fringed poppy mallow
Callirhoe involucrata  - purple poppy mallow   ( POM )
Callirhoe triangulata  - clustered poppy mallow
Callistemon acuminatus  - bottlebrush bush
Callistemon citrinus  - crimson bottlebrush
Callistemon pallidus  - lemon bottlebrush
Callistemon rigidus  - stiff bottlebrush
Callistemon 'Woodlander's Hardy'  - bottlebrush bush
Callistephus chinensis  - China aster
Calluna vulgaris  - Scotch heather
Calluna vulgaris 'Beoley Gold'  - Scotch heather
Calluna vulgaris 'Gold Haze'  - Scotch heather
Calocedrus decurrens  - incense cedar
Calopogon tuberosus  - grass pink orchid
Calotropis gigantea  - giant milkweed
Calotropis procera  - roostertree
Caltha palustris  - marsh marigold
Calycanthus chinensis  - Chinese sweetshrub   ( POM )
Calycanthus floridus  - Carolina allspice   ( POM )
Calycanthus floridus 'Athens'  - Carolina allspice
Calycanthus occidentalis  - Californian allspice
Calycanthus 'Venus'  - Carolina allspice
Camassia angusta  - prairie camas
Camassia cusickii  - Cusick's camass   ( POM )
Camassia leichtlinii  - large camas
Camassia scilloides  - wild hyacinth
Camellia crapnelliana  - camellia
Camellia edithae  - camellia
Camellia furfuracea  - camellia
Camellia japonica  - camellia
Camellia oleifera  - camellia
Camellia rosiflora  - camellia
Camellia sasanqua  - camellia
Campanula americana  - tall bellflower
Campanula bononiensis  - bellflower
Campanula collina  - bellflower
Campanula garganica 'Dickson's Gold'  - Adriatic bellflower
Campanula glomerata  - clustered bellflower
Campanula glomerata BELLEFLEUR BLUE  - clustered bellflower
Campanula glomerata 'Caroline'  - clustered bellflower
Campanula glomerata 'Church Bells'  - clustered bellflower
Campanula glomerata 'Superba'  - clustered bellflower
Campanula glomerata var. alba  - clustered bellflower
Campanula incurva  - bellflower
Campanula kemulariae  - bellflower
Campanula 'Kent Belle'  - bellflower
Campanula lactiflora 'Pouffe'  - milky bellflower
Campanula latifolia  - bellflower
Campanula persicifolia  - willow bell
Campanula persicifolia 'Chettle Charm'  - peach-leaved bellflower
Campanula portenschlagiana 'Aurea'  - Dalmation bellflower
Campanula poscharskyana  - Serbian bellflower
Campanula poscharskyana 'Stella'  - Serbian bellflower
Campanula punctata  - spotted bellflower
Campanula punctata 'Cherry Bells'  - spotted bellflower
Campanula punctata 'Pink Chimes'  - spotted bellflower
Campanula rapunculoides  - rampion bellflower
Campanula rapunculus  - rampion
Campanula 'Sarastro'  - bellflower
Campanula sarmatica  - bellflower
Campanula trachelium  - nettle-leaved bellflower
Campsis grandiflora  - Chinese trumpet creeper
Campsis grandiflora 'Morning Calm'  - Chinese trumpet creeper
Campsis radicans  - trumpetcreeper
Campsis radicans 'Apricot'  - trumpetcreeper
Campsis radicans f. flava  - trumpetcreeper
Campsis × tagliabuana  - trumpet creeper
Camptosema praeandinum  - camptosema
Canna 'Australia'  - canna
Canna (group)  - canna
Canna 'Striata'  - canna   ( POM )
Capparis spinosa  - caper
Capsicum annuum  - cayenne pepper
Capsicum annuum 'Bananarama'  - sweet pepper   ( POM )
Capsicum annuum 'Black Pearl'  - ornamental pepper   ( POM )
Capsicum annuum 'Emerald Fire'  - hot pepper   ( POM )
Capsicum annuum 'Onyx Red'  - ornamental pepper   ( POM )
Capsicum annuum 'Park's Early Thickset'  - sweet bell pepper   ( POM )
Capsicum annuum 'Purple Flash'  - ornamental pepper   ( POM )
Capsicum chinense  - pepper
Capsicum chinense 'Roulette'  - habanero pepper
Caragana arborescens  - Siberian peashrub
Caragana rosea  - rose peashrub
Cardamine concatenata  - cutleaf toothwort
Cardamine pratensis  - bitter cress
Cardamine trifolia  - trifoliate bittercress
Cardiandra alternifolia  - Cardiandra
Cardiocrinum giganteum  - giant lily
Carex alata  - broadwing sedge
Carex albicans  - white-tinged sedge
Carex annectens  - sedge
Carex bicknellii  - prairie sedge
Carex bromoides  - brome-like sedge
Carex buchananii  - leatherleaf sedge
Carex buchananii 'Red Rooster'  - leatherleaf sedge
Carex bushii  - Bush's sedge
Carex 'Chisai'  - California sedge
Carex comans  - sedge
Carex crinita  - fringed sedge
Carex cristatella  - sedge
Carex crus-corvi  - sedge
Carex davisii  - Davis's sedge
Carex divulsa  - grey sedge
Carex eburnea  - bristle-leaved sedge
Carex elata  - tufted sedge
Carex elata 'Aurea'  - Bowles' golden sedge
Carex flacca  - blue green sedge
Carex flacca 'Blue Zinger'  - blue sedge   ( POM )
Carex flaccosperma  - blue wood sedge
Carex frankii  - Frank's sedge
Carex grayi  - gray sedge
Carex haydenii  - Hayden's sedge
Carex 'Ice Dance'  - sedge   ( POM )
Carex laxiculmis  - sedge
Carex leporina  - oval sedge
Carex lurida  - sallow sedge
Carex morrowii  - Japanese grass sedge
Carex morrowii 'Goldband'  - Japanese grass sedge
Carex morrowii 'Variegata'  - Japanese grass sedge
Carex muskingumensis  - palm sedge   ( POM )
Carex nigra  - black sedge
Carex nigra 'Variegata'  - black sedge
Carex normalis  - greater straw sedge
Carex pansa  - sand-dune sedge
Carex plantaginea  - sedge
Carex praegracilis  - clustered field sedge
Carex radiata  - eastern star sedge
Carex retroflexa  - reflexed sedge
Carex squarrosa  - squarrose sedge
Carex stricta  - tussock sedge
Carex swanii  - sedge
Carex tenuiculmis 'Cappuccino'  - New Zealand sedge
Carex vulpinoidea  - fox sedge
Carica papaya  - papaya
Carpinus betulus  - common hornbeam
Carpinus betulus 'Fastigiata'  - common hornbeam   ( POM )
Carpinus betulus 'Pendula'  - common hornbeam
Carpinus caroliniana  - American hornbeam   ( POM )
Carpinus cordata  - hornbeam
Carpinus japonica  - Japanese hornbeam
Carpinus orientalis  - oriental hornbeam
Carya cordiformis  - bitternut hickory
Carya glabra  - pignut
Carya illinoinensis  - hardy pecan
Carya laciniosa  - shellbark hickory
Carya × laneyi  - hickory
Carya ovata  - shagbark hickory
Carya tomentosa  - mockernut
Caryota mitis  - Burmese fishtail palm
Cascabela thevetia  - yellow oleander
Cassia bakeriana  - wishing tree
Cassia fistula  - golden shower tree
Cassia grandis  - pink shower
Cassia leptophylla  - pink shower
Castanea crenata  - Japanese chestnut
Castanea dentata  - American chestnut
Castanea hybrid (15/16 B3F3)  - American chestnut hybrid
Castanea mollissima  - Chinese chestnut
Castanea ozarkensis  - Ozark chinquapin
Castanea sativa  - European chestnut
Castilleja coccinea  - Indian paintbrush
Catalpa bignonioides  - catalpa
Catalpa ovata  - Chinese catalpa
Catalpa speciosa  - catalpa
Catananche caerulea  - cupid's dart
Catharanthus roseus  - Madagascar periwinkle
Cattleya (group)  - orchid
Caulophyllum thalictroides  - blue cohosh
Cautleya cathcartii  - cautleya
Cautleya gracilis  - cautleya
Cavanillesia platanifolia  - cavanillesia
Ceanothus americanus  - New Jersey tea
Ceanothus 'Concha'  - California lilac
Ceanothus herbaceus  - Jersey tea
Ceanothus 'Minmarose' MARIE ROSE  - California lilac
Ceanothus thyrsiflorus 'Skylark'  - blue mountain lilac
Cedrus atlantica  - Atlas cedar
Cedrus atlantica (Glauca Group)  - blue atlas cedar
Cedrus deodara  - deodar cedar
Cedrus deodara 'Shalimar'  - Himalayan cedar
Cedrus libani  - cedar of Lebanon
Cedrus libani 'Hedgehog'  - cedar of Lebanon
Cedrus libani 'Sargentii'  - cedar of Lebanon
Ceiba pentandra  - kapoktree
Celastrus orbiculatus  - oriental bittersweet
Celastrus scandens  - American bittersweet
Celtis australis  - Mediterranean hackberry
Celtis caucasica  - Mediterranean hackberry
Celtis laevigata  - sugarberry
Celtis occidentalis  - hackberry
Celtis pumila  - dwarf hackberry
Celtis sinensis 'Green Cascade'  - weeping Japanese hackberry
Centaurea cyanus  - cornflower
Centaurea dealbata  - knapweed
Centaurea macrocephala  - bighead knapweed
Centaurea montana  - mountain bluet
Centaurea montana 'Gold Bullion'  - perennial cornflower
Centranthus ruber  - red valerian
Centranthus ruber 'Albus'  - red valerian
Cephalanthus occidentalis  - buttonbush   ( POM )
Cephalaria gigantea  - giant pincushion flower
Cephalotaxus fortunei  - Chinese plum yew
Cephalotaxus harringtonia  - Japanese plum yew
Cephalotaxus harringtonia 'Nana'  - cow's tail pine
Cephalotaxus harringtonia YEWTOPIA  - Japanese plum yew
Cerastium arvense  - field chickweed
Cerastium arvense subsp. glandulosum  - mouse-ear chickweed
Cerastium tomentosum  - snow-in-summer
Cerastium tomentosum 'Olympia'  - snow-in-summer
Cerastium tomentosum 'Yo Yo'  - snow-in-summer
Cerasus erythrocarpa  - Asian shrub cherry
Ceratonia siliqua  - St. John's bread
Ceratopteris pteridoides  - water fern
Ceratostigma abyssinicum  - ceratostigma
Ceratostigma plumbaginoides  - plumbago   ( POM )
Cercidiphyllum japonicum  - katsura tree   ( POM )
Cercis canadensis  - eastern redbud
Cercis canadensis 'Appalachian Red'  - eastern redbud   ( POM )
Cercis canadensis 'Covey'  - eastern redbud
Cercis canadensis f. alba  - eastern redbud
Cercis canadensis f. alba 'Royal White'  - eastern redbud   ( POM )
Cercis canadensis 'Forest Pansy'  - eastern redbud   ( POM )
Cercis chinensis  - Chinese redbud
Cercis chinensis 'Avondale'  - Chinese redbud
Cercis chinensis 'Don Egolf'  - Chinese redbud
Cercis 'Merlot'  - redbud
Cercis siliquastrum  - Judas tree
Cercocarpus montanus  - mountain mahogany
Cestrum aurantiacum  - orange jessamine
Cestrum elegans  - purple cestrum
Cestrum nocturnum  - night jessamine
Cestrum parqui  - Chilean jessamine
Chaenomeles japonica  - Japanese quince
Chaenomeles japonica var. alpina  - Japanese quince
Chaenomeles 'Orange Storm'  - flowering quince
Chaenomeles 'Pink Storm'  - flowering quince
Chaenomeles 'Scarlet Storm'  - flowering quince
Chaenomeles speciosa  - flowering quince
Chaenomeles speciosa 'Contorta'  - flowering quince
Chaenomeles × superba 'Cameo'  - flowering quince
Chamaecostus cuspidatus  - fiery costus
Chamaecrista fasciculata  - partridge pea
Chamaecyparis lawsoniana  - Lawson's cypress
Chamaecyparis obtusa  - hinoki cypress
Chamaecyparis obtusa 'Densa'  - hinoki cypress
Chamaecyparis obtusa 'Hage'  - hinoki cypress
Chamaecyparis obtusa 'Kosteri'  - hinoki cypress
Chamaecyparis obtusa 'Nana'  - hinoki cypress
Chamaecyparis obtusa 'Verdon'  - hinoki cypress
Chamaecyparis pisifera  - sawara cypress
Chamaecyparis pisifera 'Aurea'  - Japanese falsecypress
Chamaecyparis pisifera 'Aurea Pendula'  - Japanese falsecypress
Chamaecyparis pisifera 'Boulevard'  - Japanese falsecypress
Chamaecyparis pisifera 'Cream Ball'  - Japanese falsecypress
Chamaecyparis pisifera 'Curly Tops'  - Japanese falsecypress
Chamaecyparis pisifera 'Filifera'  - Japanese falsecypress
Chamaecyparis pisifera 'Filifera Aurea'  - Japanese falsecypress   ( POM )
Chamaecyparis pisifera 'Gold Spangle'  - Japanese falsecypress
Chamaecyparis pisifera 'Golden Charm'  - Japanese falsecypress
Chamaecyparis pisifera 'Golden Mop'  - Japanese falsecypress
Chamaecyparis pisifera 'Kost Yellow'  - Japanese falsecypress
Chamaecyparis pisifera 'Lemon Thread'  - Japanese falsecypress
Chamaecyparis pisifera 'Sungold'  - Japanese falsecypress
Chamaecyparis pisifera 'Tsukumo'  - Japanese falsecypress
Chamaecyparis pisifera 'Vintage Gold'  - Japanese falsecypress
Chamaecyparis thyoides  - white cypress
Chamaecytisus hirsutus  - chamaecytisus
Chamaedorea elegans  - parlor palm
Chamaedorea microspadix  - chamaedorea
Chamaedorea seifrizii  - bamboo palm
Chamaelirium luteum  - fairy wand
Chamaemelum nobile  - chamomile
Chamaerops humilis  - European fan palm
Chamaerops humilis var. humilis  - European fan palm
Chasmanthium latifolium  - northern sea oats
Chelidonium majus  - greater celandine
Chelone 'Armtipp02' TINY TORTUGA  - pink turtlehead
Chelone glabra  - white turtlehead
Chelone lyonii  - pink turtlehead
Chelone lyonii 'Hot Lips'  - pink turtlehead
Chelone obliqua  - turtlehead
Chelone obliqua 'Rosea'  - turtlehead
Chelonopsis yagiharana  - Japanese turtlehead
Chenopodium quinoa  - quinoa
Chilopsis linearis  - desert willow
Chimonanthus praecox  - wintersweet
Chionanthus retusus  - Chinese fringe tree
Chionanthus retusus 'Tokyo Tower'  - Chinese fringe tree
Chionanthus virginicus  - fringe tree   ( POM )
Chionodoxa forbesii  - glory of the snow
Chionodoxa forbesii 'Blue Giant'  - glory of the snow   ( POM )
Chionodoxa luciliae  - glory of the snow
Chionodoxa luciliae 'Alba'  - glory of the snow
Chionodoxa 'Pink Giant'  - glory of the snow   ( POM )
Chlorophytum amaniense  - St. Bernard's lily
Chlorophytum 'Bonnie'  - spider plant
Chlorophytum comosum  - spider plant
Chlorophytum 'Fire Flash'  - spider plant
Choisya arizonica 'Bluestone'  - Mexican orange
Choisya ternata  - Mexican orange
Chorisia speciosa  - silk floss tree
Chrysanthemum 'Cathy's Rust'  - daisy garden mum
Chrysanthemum 'Hillside Sheffield Pink'  - decorative garden mum
Chrysanthemum 'Jessica'  - chrysanthemum
Chrysanthemum 'Lindayo' LINDA  - chrysanthemum
Chrysanthemum 'Pumpkin Igloo'  - chrysanthemum
Chrysanthemum 'Radiant Igloo'  - chrysanthemum
Chrysanthemum 'Yobra' BRAVO  - chrysanthemum
Chrysanthemum 'Yogin' GINGER  - chrysanthemum
Chrysanthemum 'Yohannah' HANNAH  - decorative garden mum
Chrysanthemum 'Yosun' SUNDORO  - chrysanthemum
Chrysanthemum zawadskii  - chrysanthemum
Chrysogonum virginianum  - golden knee
Chrysophyllum cainito  - star apple
Chrysopsis mariana  - golden aster
Cibotium glaucum  - tree fern
Cichorium intybus  - chicory
Cinna arundinacea  - wood reed grass
Cinnamomum burmannii  - Padang cassia
Cinnamomum cassia  - Chinese cinnamon tree
Cinnamomum verum  - cinnamon
Cissus alata  - grape ivy
Cissus javana  - rex begonia vine
Cissus trifoliata  - marine ivy
Citrullus lanatus  - watermelon
Citrus hystrix  - Thai lime
Citrus limon  - lemon
Citrus maxima  - pummelo
Citrus × meyeri  - meyer lemon
Citrus × microcarpa  - calamondin
Citrus 'Ponderosa'  - giant lemon
Citrus reticulata 'Clementine'  - mandarin orange
Citrus reticulata 'Dancy'  - mandarin orange
Citrus × sinensis 'Moro'  - blood orange
Cladrastis kentukea  - yellowwood   ( POM )
Cladrastis wilsonii  - yellowwood
Clarkia amoena  - satin flower
Claytonia virginica  - spring beauty
Clematis 'Andromeda'  - clematis
Clematis crispa  - blue jasmine
Clematis × durandii  - clematis
Clematis 'Fireworks'  - clematis
Clematis fremontii  - Fremont's leather flower
Clematis fruticosa 'Mongolian Gold'  - Mongolian gold clematis
Clematis 'Henryi'  - clematis
Clematis integrifolia  - solitary clematis
Clematis integrifolia 'Caerulea'  - solitary clematis
Clematis 'Jackmanii'  - clematis
Clematis × jouiniana  - clematis
Clematis macropetala  - downy clematis
Clematis 'My Angel'  - clematis
Clematis 'Niobe'  - clematis
Clematis pitcheri  - clematis
Clematis 'Ramona'  - clematis
Clematis 'Rooguchi'  - clematis   ( POM )
Clematis scottii  - Scott's clematis
Clematis 'Snow Queen'  - clematis
Clematis tangutica  - golden-bell clematis
Clematis terniflora  - sweet autumn virginsbower
Clematis tubulosa  - clematis
Clematis versicolor  - pale leather flower
Clematis virginiana  - woodbine
Cleome 'Inncleosr' SENORITA ROSALITA  - spider flower   ( POM )
Clerodendrum bungei  - rose glory bower
Clerodendrum splendens  - glory bower
Clerodendrum thomsoniae  - bleeding heart
Clerodendrum trichotomum  - clerodendrum
Clerodendrum wallichii  - glory-bower
Clethra alnifolia  - sweet pepperbush
Clethra alnifolia 'Batsto Blush'  - sweet pepperbush
Clethra alnifolia 'Crystalina'  - sweet pepperbush
Clethra alnifolia 'Hummingbird'  - sweet pepperbush
Clethra alnifolia 'Pink Spire'  - sweet pepperbush
Clethra alnifolia 'Rosea'  - sweet pepperbush
Clethra alnifolia 'Ruby Spice'  - sweet pepperbush   ( POM )
Clethra alnifolia SHERRY SUE  - sweet pepperbush
Clethra alnifolia 'Tom's Compact'  - sweet pepperbush
Clethra barbinervis  - Japanese clethra
Clethra pringlei  - clethra
Clethra tomentosa 'Cottondale'  - woolly white alder
Cleyera japonica  - sakaki
Clinopodium arkansanum  - limestone calamint
Clitoria ternatea  - butterfly pea   ( POM )
Clivia miniata  - Natal lily
Clusia orthoneura  - clusia
Cobaea scandens  - cup and saucer vine
Cocculus carolinus  - Carolina moonseed
Cocculus orbiculatus  - cocculus
Cocos nucifera  - coconut palm
Codonopsis lanceolata  - bonnet bellflower
Coffea arabica  - coffee
Colchicum autumnale  - autumn crocus
Colchicum byzantinum  - autumn crocus
Colchicum byzantinum 'Album'  - autumn crocus
Colchicum cilicicum  - autumn crocus
Colchicum 'Disraeli'  - autumn crocus
Colchicum (group)  - autumn crocus
Colchicum laetum  - autumn crocus
Colchicum tenorei  - autumn crocus
Colchicum 'Violet Queen'  - autumn crocus
Colchicum 'Waterlily'  - autumn crocus
Collinsia verna  - blue-eyed Mary
Collinsonia canadensis  - horse balm
Colocasia gigantea  - giant elephant's ear
Colocasia gigantea 'Thailand Giant Strain'  - giant elephant's ear   ( POM )
Colquhounia coccinea  - Himalayan mint shrub
Columnea microcalyx  - columnea
Colutea × media  - bladder senna
Comptonia peregrina  - sweet fern
Conoclinium coelestinum  - blue mistflower
Conoclinium greggii  - thoroughwort
Conradina verticillata  - Cumberland rosemary
Consolida ajacis  - giant larkspur
Convallaria majalis  - lily of the valley
Convallaria majalis 'Potsdam Stripe'  - lily of the valley
Convallaria majalis var. rosea  - lily of the valley
Convolvulus cneorum  - silverbush
Convolvulus tricolor  - bindweed
Coprosma 'Black Cloud'  - Black Cloud Mirror Bush
Cordyline australis  - cabbage tree
Cordyline australis 'Salsa'  - cabbage tree
Cordyline fruticosa  - cabbage tree
Cordyline fruticosa 'Kiwi'  - cabbage tree
Cordyline indivisa  - mountain palm
Coreopsis auriculata 'Nana'  - ear-leaved tickseed
Coreopsis auriculata 'Zamphir'  - ear-leaved tickseed
Coreopsis 'Goldfink'  - tickseed
Coreopsis grandiflora  - large-flowered tickseed
Coreopsis grandiflora 'Domino'  - large-flowered tickseed
Coreopsis grandiflora 'Early Sunrise'  - large-flowered tickseed
Coreopsis grandiflora 'Mayfield Giant'  - large-flowered tickseed
Coreopsis grandiflora 'Sundancer'  - large-flowered tickseed
Coreopsis integrifolia  - fringeleaf tickseed
Coreopsis 'Ladybird'  - tickseed
Coreopsis lanceolata  - lanceleaf coreopsis
Coreopsis lanceolata 'Summer Sprite'  - lanceleaf coreopsis
Coreopsis major  - greater tickseed
Coreopsis 'Moonlight'  - tickseed
Coreopsis palmata  - tickseed
Coreopsis 'Pinwheel'  - tickseed
Coreopsis pubescens  - tickseed
Coreopsis 'Red Elf'  - tickseed
Coreopsis 'Redshift'  - tickseed
Coreopsis rosea  - tickseed
Coreopsis 'Route 66'  - tickseed
Coreopsis 'Sunburst'  - tickseed
Coreopsis 'Sunray'  - tickseed
Coreopsis tinctoria  - plains coreopsis   ( POM )
Coreopsis tripteris  - tickseed
Coreopsis verticillata  - threadleaf coreopsis
Coreopsis verticillata 'Golden Dream'  - threadleaf coreopsis
Coreopsis verticillata 'Golden Gain'  - threadleaf coreopsis
Coreopsis verticillata 'Grandiflora'  - threadleaf coreopsis
Coreopsis verticillata 'Hot Paprika'  - threadleaf coreopsis
Coreopsis verticillata 'Moonbeam'  - threadleaf coreopsis
Coreopsis verticillata 'Zagreb'  - threadleaf coreopsis
Coriandrum sativum  - cilantro
Cornus alba  - tatarian dogwood
Cornus alba 'Argenteomarginata'  - tatarian dogwood
Cornus alba 'Bailhalo' IVORY HALO  - tatarian dogwood
Cornus alba 'Gouchaultii'  - tatarian dogwood
Cornus alba 'Kesselringii'  - tatarian dogwood
Cornus alba 'Prairie Fire'  - tatarian dogwood
Cornus alba 'Regnzam' RED GNOME  - tatarian dogwood
Cornus alba 'Siberian Pearls'  - tatarian dogwood
Cornus alba 'Sibirica'  - tatarian dogwood
Cornus alba 'Spaethii'  - tatarian dogwood
Cornus alternifolia  - pagoda dogwood
Cornus alternifolia 'Argentea'  - pagoda dogwood
Cornus amomum  - dogwood
Cornus amomum subsp. obliqua  - swamp dogwood
Cornus canadensis  - bunchberry
Cornus capitata  - evergreen dogwood
Cornus controversa  - giant dogwood
Cornus drummondii  - dogwood
Cornus elliptica  - dogwood
Cornus florida  - flowering dogwood
Cornus florida 'Appalachian Spring'  - flowering dogwood
Cornus florida 'Cherokee Chief'  - flowering dogwood
Cornus florida 'Cherokee Princess'  - flowering dogwood
Cornus florida 'Cloud Nine'  - flowering dogwood
Cornus florida 'Comco No. 1' CHEROKEE BRAVE  - flowering dogwood   ( POM )
Cornus florida 'Daybreak'  - flowering dogwood
Cornus florida f. rubra  - flowering dogwood
Cornus florida 'Ozark Spring'  - flowering dogwood
Cornus florida 'Purple Glory'  - flowering dogwood
Cornus florida 'Red Pygmy'  - flowering dogwood
Cornus florida 'Royal Red'  - flowering dogwood
Cornus florida 'White Cloud'  - flowering dogwood
Cornus florida 'Xanthocarpa'  - flowering dogwood
Cornus foemina  - stiff dogwood
Cornus 'Kn30 8' VENUS  - hybrid dogwood
Cornus kousa  - kousa dogwood
Cornus kousa 'Fireworks'  - kousa dogwood
Cornus kousa 'Peve Limbo'  - kousa dogwood
Cornus kousa 'Satomi'  - kousa dogwood
Cornus kousa 'Snow Tower'  - kousa dogwood
Cornus kousa var. chinensis  - Chinese dogwood   ( POM )
Cornus mas  - cornelian cherry dogwood
Cornus mas 'Golden Glory'  - cornelian cherry dogwood   ( POM )
Cornus nuttallii  - mountain dogwood
Cornus officinalis  - Japanese cornelian cherry
Cornus pumila  - dwarf red-tipped dogwood
Cornus racemosa  - gray dogwood
Cornus sanguinea  - bloodtwig dogwood
Cornus sanguinea 'Cato' ARCTIC SUN  - bloodtwig dogwood
Cornus sanguinea 'Compressa'  - bloodtwig dogwood
Cornus sanguinea 'Midwinter Fire'  - bloodtwig dogwood   ( POM )
Cornus sanguinea 'Winter Beauty'  - bloodtwig dogwood
Cornus sericea  - red twig dogwood
Cornus sericea 'Allemans'  - red twig dogwood
Cornus sericea 'Baileyi'  - red twig dogwood
Cornus sericea 'Budd's Yellow'  - yellowtwig dogwood
Cornus sericea 'Cardinal'  - red twig dogwood   ( POM )
Cornus sericea 'Flaviramea'  - yellow twig dogwood
Cornus sericea 'Hedgerows Gold'  - red twig dogwood
Cornus sericea 'Isanti'  - red twig dogwood
Cornus sericea 'Neil Z' PUCKER UP  - red twig dogwood
Cornus sericea 'Silver and Gold'  - yellow twig dogwood
Cornus wilsoniana  - dogwood
Cortaderia selloana  - Uruguayan pampas grass
Corydalis flexuosa  - corydalis
Corydalis lutea  - corydalis
Corydalis ochroleuca  - corydalis
Corydalis ophiocarpa  - corydalis
Corydalis solida  - fumewort
Corylopsis glabrescens  - winter hazel
Corylopsis pauciflora  - winter hazel
Corylopsis sinensis  - winter hazel
Corylopsis spicata  - winter hazel
Corylus americana  - American hazelnut
Corylus avellana  - hazelnut
Corylus avellana 'Contorta'  - Harry Lauder's walking stick   ( POM )
Corylus colurna  - Turkish hazel   ( POM )
Corylus cornuta  - beaked hazel
Corylus maxima  - large filbert
Corylus maxima 'Atropurpurea'  - large filbert
Corymbia citriodora  - lemon eucalyptus
Cosmos atrosanguineus  - chocolate cosmos
Cosmos bipinnatus  - cosmos
Cosmos sulphureus  - cosmos
Costus woodsonii  - scarlet spiral-ginger
Cotinus coggygria  - smoketree
Cotinus coggygria 'Velvet Cloak'  - smoketree   ( POM )
Cotinus obovatus  - American smoke tree   ( POM )
Cotoneaster acutifolius  - cotoneaster
Cotoneaster adpressus  - creeping cotoneaster
Cotoneaster adpressus 'Little Gem'  - creeping cotoneaster
Cotoneaster apiculatus  - cotoneaster
Cotoneaster astrophoros  - cotoneaster
Cotoneaster cochleatus  - cotoneaster
Cotoneaster dammeri 'Coral Beauty'  - bearberry cotoneaster
Cotoneaster divaricatus  - cotoneaster
Cotoneaster franchetii  - cotoneaster
Cotoneaster glaucophyllus  - cotoneaster
Cotoneaster hessei  - cotoneaster
Cotoneaster horizontalis  - rock cotoneaster
Cotoneaster microphyllus  - small-leaved cotoneaster
Cotoneaster multiflorus  - cotoneaster
Cotoneaster nanshan  - creeping cotoneaster
Cotoneaster suavis  - cotoneaster
Couroupita guianensis  - cannonball tree
Crambe cordifolia  - colewort
Crambe maritima  - sea kale
Crassula ovata  - jade plant
× Crataegomespilus 'Dardarii'  - medlar-hawthorn
Crataegus coccinea  - hawthorn
Crataegus crus-galli  - cockspur thorn
Crataegus douglasii  - black hawthorn
Crataegus laevigata  - English hawthorn
Crataegus nitida  - hawthorn
Crataegus phaenopyrum  - Washington hawthorn
Crataegus 'Vaughn'  - cockspur thorn
Crataegus viridis  - green hawthorn
Crescentia cujete  - common calabash tree
Crinum americanum  - Florida swamp lily
Crinum asiaticum  - poison bulb
Crinum (group)  - crinum
Crinum jagus  - crinum
Crinum × powellii  - crinum
Crocosmia 'Emberglow'  - montbretia
Crocosmia 'Gold Rush'  - montbretia
Crocosmia 'Lucifer'  - montbretia
Crocosmia pottsii  - montbretia
Crocosmia 'Sharona'  - montbretia
Crocus chrysanthus  - snow crocus
Crocus chrysanthus 'Panda'  - snow crocus
Crocus sativus  - saffron crocus
Crocus tommasinianus  - snow crocus
Crocus vernus  - Dutch crocus
Crocus vernus 'Flower Record'  - Spring crocus
Crocus vernus 'Grand Maitre'  - Spring crocus
Crocus vernus 'Jeanne d'Arc'  - Spring crocus
Crocus vernus 'Pickwick'  - Spring crocus
Crocus vernus 'Remembrance'  - Spring crocus
Crossandra infundibuliformis  - firecracker flower
Croton alabamensis  - alabama croton
Cryptanthus (group)  - cryptanthus
Cryptomeria japonica  - Japanese cedar
Cryptomeria japonica 'Yoshino'  - Japanese cedar
Cryptotaenia canadensis  - Canadian honewort
Cucumis melo  - canteloupe
Cucumis sativus  - cucumber
Cucurbita argyrosperma  - winter squash
Cucurbita maxima  - winter squash
Cucurbita moschata  - winter squash
Cucurbita pepo  - summer squash
Cunila origanoides  - common dittany
Cunninghamia lanceolata  - China-fir
Cuphea 'David Verity'  - cuphea   ( POM )
Cuphea glutinosa  - Mexican heather
Cuphea hyssopifolia  - false heather   ( POM )
Cuphea hyssopifolia 'Allyson Heather'  - false heather   ( POM )
Cuphea ignea  - cigar flower
Cuphea llavea  - cuphea
Cuphea × purpurea  - bat-faced cuphea
Cuphea VERMILLIONAIRE  - cuphea   ( POM )
Cuphea viscosissima  - blue waxweed
Cupressus cashmeriana  - Kashmir cypress
Cupressus dupreziana  - Saharan cypress
Cupressus sempervirens  - Italian cypress
Cupressus sempervirens 'Glauca'  - Italian cypress
× Cuprocyparis leylandii  - Leyland cypress
Curcuma longa  - common turmeric
Curcuma petiolata  - queen lily
Curio rowleyanus  - string of pearls
Cycas revoluta  - Sago palm
Cycas rumphii  - cycad
Cyclamen hederifolium  - Persian violet
Cyclamen persicum  - cyclamen
Cydonia oblonga  - quince
Cymbalaria aequitriloba  - cymbalaria
Cymbalaria muralis  - Kenilworth ivy
Cymbidium (group)  - orchid
Cymbopogon citratus  - lemon grass   ( POM )
Cymbopogon flexuosus  - lemon grass
Cynara cardunculus  - cardoon
Cynodon dactylon 'Sundevil'  - Bermuda grass
Cynodon dactylon 'Yukon'  - Bermuda grass
Cynoglossum amabile  - Chinese forget-me-not
Cyperus involucratus  - umbrella plant
Cyperus papyrus  - papyrus
Cyperus papyrus KING TUT  - papyrus   ( POM )
Cyphomandra betacea  - tree tomato
Cypripedium kentuckiense  - lady slipper
Cyrilla racemiflora  - leatherwood
Cyrtomium falcatum  - Japanese holly fern
Cyrtomium falcatum 'Rochfordianum'  - Japanese holly fern
Cyrtomium fortunei  - Japanese holly fern
Cyrtomium fortunei var. clivicolum  - Japanese holly fern
Cyrtostachys renda  - sealing wax palm
Cystopteris protrusa  - lowland fragile fern
Cytisus × kewensis  - pineapple broom
Cytisus scoparius  - Scotch broom
Dactylorhiza majalis  - broad-leaved marsh orchid
Dahlia (group)  - dahlia
Dahlia 'Mystic Illusion'  - dahlia   ( POM )
Dahlia 'Softie'  - dahlia
Dalea candida  - white prairie clover
Dalea gattingeri  - Gattinger's prairie clover
Dalea purpurea  - purple prairie clover
Daphne cneorum  - daphne
Daphne kurdica  - daphne
Daphne mezereum  - mezereon
Daphne odora  - winter daphne
Daphne odora 'Aureomarginata'  - winter daphne
Daphniphyllum macropodum  - daphniphyllum
Darmera peltata  - umbrella plant
Datura inoxia  - pricklyburr
Datura metel  - horn-of-plenty
Davallia canariensis  - hare's foot fern
Davallia fejeensis  - rabbit's foot fern
Davallia fejeensis 'Dwarf Ripple'  - rabbit's foot fern
Davidia involucrata  - dove tree
Decaisnea fargesii  - dead man's fingers
Decodon verticillatus  - swamp loosestrife
Deinanthe bifida  - false hydrangea
Deinanthe caerulea  - false hydrangea
Delonix regia  - royal poinciana
Delosperma cooperi  - ice plant
Delosperma 'Kelaidis'  - ice plant
Delosperma nubigenum  - hardy yellow iceplant
Delphinium cardinale  - cardinal larkspur
Delphinium carolinianum  - Carolina larkspur
Delphinium elatum  - delphinium
Delphinium elatum AURORA BLUE  - candle larkspur
Delphinium elatum AURORA WHITE  - candle larkspur
Delphinium exaltatum  - tall larkspur
Delphinium 'Fanfare'  - larkspur
Delphinium grandiflorum  - Siberian larkspur
Delphinium treleasei  - Trelease's larkspur
Delphinium tricorne  - dwarf larkspur
Dendrobium (group)  - orchid
Dennstaedtia punctilobula  - hay-scented fern
Deparia petersenii  - Japanese lady fern
Deparia pycnosora  - tapering glade fern
Deschampsia cespitosa  - tufted hair grass
Deschampsia cespitosa 'Tardiflora'  - tufted hair grass
Deschampsia flexuosa  - crinkled hair grass
Desmanthus illinoensis  - prairie bundleflower
Desmodium elegans  - elegant tick clover
Desmodium illinoense  - tick-trefoil
Deutzia gracilis  - slender deutzia
Deutzia gracilis 'Nikko'  - slender deutzia   ( POM )
Deutzia × lemoinei  - deutzia
Deutzia × magnifica  - deutzia
Deutzia × rosea  - deutzia
Deutzia scabra  - fuzzy deutzia
Deutzia scabra 'Candidissima'  - fuzzy deutzia
Deutzia scabra 'Codsall Pink'  - fuzzy deutzia
Dianthus barbatus  - sweet William
Dianthus barbatus 'Pinocchio'  - sweet William
Dianthus barbatus 'Sooty'  - sweet William
Dianthus 'Bath's Pink'  - cheddar pink
Dianthus 'Bewitched'  - carnation
Dianthus deltoides  - maiden pink
Dianthus deltoides 'Albus'  - maiden pink
Dianthus 'Feuerhexe' FIREWITCH  - cheddar pink   ( POM )
Dianthus 'First Love'  - cheddar pink
Dianthus gratianopolitanus  - cheddar pink
Dianthus 'Helen'  - carnation
Dianthus 'Laced Romeo'  - carnation
Dianthus 'Mountain Mist'  - cheddar pink
Dianthus 'Pixie'  - border carnation
Dianthus 'Pixie Star'  - carnation
Dianthus 'Stagirond' RONDO  - sweet William
Dianthus superbus  - carnation
Dianthus 'Supra Purple'  - carnation
Diarrhena americana  - American beakgrain
Diarrhena mandshurica  - diarrhena
Diarrhena obovata  - American beakgrain
Diascia barberae  - twinspur
Dicentra 'Adrian Bloom'  - bleeding heart
Dicentra 'Bacchanal'  - bleeding heart
Dicentra 'Burning Hearts'  - bleeding heart
Dicentra cucullaria  - Dutchman's breeches
Dicentra eximia  - bleeding heart
Dicentra 'Ivory Hearts'  - bleeding heart
Dicentra 'King of Hearts'  - bleeding heart
Dicentra 'Love Hearts'  - bleeding heart
Dicentra 'Luxuriant'  - bleeding heart
Dicentra 'Red Fountain'  - bleeding heart
Dichondra argentea 'Silver Falls'  - Silver ponysfoot   ( POM )
Dichorisandra thyrsiflora  - blue ginger
Dichroa febrifuga  - Chinese quinine
Dicksonia antarctica  - soft tree fern
Dicliptera squarrosa  - dicliptera
Dictamnus albus  - dittany
Dieffenbachia seguine  - dumb cane
Dierama igneum  - Angel’s fishing rod
Dierama pendulum  - angel's fishing rods
Diervilla 'Copper'  - dwarf bush-honeysuckle
Diervilla 'G2X88544' KODIAK ORANGE  - southern bush honeysuckle
Diervilla lonicera  - bush honeysuckle
Diervilla rivularis  - mountain bush honeysuckle
Diervilla rivularis 'Morton' SUMMER STARS  - mountain bush honeysuckle
Diervilla sessilifolia  - bush honeysuckle
Dietes bicolor  - butterfly flag
Dietes iridioides  - dietes
× Digiplexis 'Berry Canary'  - Isoplexis/Digitalis hybrid
Digitalis ferruginea  - rusty foxglove
Digitalis grandiflora  - large yellow foxglove
Digitalis × mertonensis  - strawberry foxglove
Digitalis obscura  - willow-leaved foxglove
Digitalis purpurea  - common foxglove
Digitalis purpurea f. albiflora  - common foxglove
Digitalis purpurea (Foxy Group)  - common foxglove
Digitalis thapsi 'Spanish Peaks'  - mullein foxglove
Dimocarpus longan  - longan
Dimorphotheca pluvialis  - weather prophet
Dionaea muscipula  - Venus fly trap
Dionaea muscipula 'Akai Ryu'  - Venus fly trap
Dionaea muscipula 'Cup-shaped'  - Venus fly trap
Dionaea muscipula 'King Henry'  - Venus fly trap
Dioon edule  - cycad
Dioscorea alata  - water yam
Dioscorea discolor  - ornamental yam
Diospyros kaki  - kaki
Diospyros kaki 'Dagaishi'  - Japanese persimmon
Diospyros virginiana  - persimmon
Dipelta floribunda  - rosy dipelta
Diplazium pycnocarpon  - glade fern
Dipsacus fullonum  - common teasel
Dirca palustris  - leatherwood
Disanthus cercidifolius  - disanthus
Disporopsis arisanensis  - Solomon's seal
Disporopsis pernyi  - evergreen Solomon's seal
Disporum cantoniense  - fairy bells
Disporum flavens  - fairy bells
Disporum lutescens  - fairy bells
Dodecatheon meadia  - shooting star
Doronicum 'Little Leo'  - leopard's bane
Doronicum macrophyllum  - leopard's bane
Draba rigida  - draba
Dracaena angolensis  - bowstring hemp
Dracaena 'Fernwood Mikado'  - bowstring hemp
Dracaena fragrans  - fragrant dracaena
Dracaena marginata  - dragontree
Dracaena masoniana  - snake plant
Dracaena pethera 'Silver Blue'  - bowstring hemp
Dracaena reflexa 'Variegata'  - song of India
Dracaena sanderiana  - dracaena
Dracaena 'Starfish'  - bowstring hemp
Dracaena suffruticosa  - bowstring hemp
Dracaena trifasciata  - snake plant
Dracaena varians  - snake plant
Dracocephalum ruyschiana  - northern dragonhead
Dracopis amplexicaulis  - clasping coneflower
Dracunculus vulgaris  - dragon arum
Drimys lanceolata  - pepper tree
Drosanthemum micans  - drosanthemum
Drosera capensis  - cape sundew
Drosera filiformis var. filiformis  - thread-leaf sundew
Dryopteris australis  - woodfern
Dryopteris carthusiana  - wood fern
Dryopteris celsa  - log fern
Dryopteris championii  - champion's wood fern
Dryopteris clintoniana  - Clinton's wood fern
Dryopteris × complexa  - buckler fern
Dryopteris cycadina  - wood fern
Dryopteris dilatata  - broad buckler fern
Dryopteris erythrosora  - Japanese shield fern
Dryopteris filix-mas  - male fern
Dryopteris goldiana  - goldie's shield fern
Dryopteris intermedia  - intermediate wood fern
Dryopteris lacera  - wood fern
Dryopteris marginalis  - marginal wood fern
Dryopteris pseudofilix-mas  - Mexican male fern
Dryopteris remota  - wood fern
Dryopteris tokyoensis  - Tokyo wood fern
Dryopteris wallichiana  - wood fern
Duranta erecta  - golden dewdrops
Duranta erecta 'Cuban Gold'  - pigeon berry   ( POM )
Duranta erecta 'Gold Edge'  - pigeon berry
Duranta erecta 'Gold Mound'  - pigeon berry
Dypsis lutescens  - bamboo palm
Ecballium elaterium  - squirting cucumber
Eccremocarpus scaber  - glory flower
× Echibeckia SUMMERINA BUTTERSCOTCH BISCUIT  - Rudbeckia/Echinacea hybrid
× Echibeckia SUMMERINA ORANGE  - Rudbeckia/Echinacea hybrid
× Echibeckia SUMMERINA SUNCHASER  - Rudbeckia/Echinacea hybrid
Echinacea 'Aloha'  - coneflower
Echinacea 'Amber Mist'  - coneflower
Echinacea angustifolia  - narrow-leaf coneflower
Echinacea atrorubens  - echinancea
Echinacea 'Bravado'  - coneflower
Echinacea 'Coral Craze'  - coneflower
Echinacea 'Coral Reef'  - coneflower
Echinacea 'Firebird'  - coneflower
Echinacea 'Hot Lava'  - coneflower
Echinacea 'Hot Papaya'  - coneflower
Echinacea 'Hot Summer'  - coneflower
Echinacea 'Irresistible'  - coneflower
Echinacea 'Julia'  - coneflower
Echinacea 'Leilani'  - coneflower
Echinacea 'Mama Mia'  - purple coneflower
Echinacea 'Marmalade'  - coneflower
Echinacea 'Meteor Red'  - coneflower
Echinacea 'Moab Sunset'  - coneflower
Echinacea pallida  - pale purple coneflower
Echinacea pallida 'Hula Dancer'  - pale purple coneflower
Echinacea (Paradiso Mix)  - purple coneflower
Echinacea paradoxa  - yellow coneflower
Echinacea 'Piccolino'  - purple coneflower
Echinacea 'Pink Mist'  - coneflower
Echinacea PUFF VANILLA  - coneflower
Echinacea purpurea  - purple coneflower
Echinacea purpurea 'Amado'  - purple coneflower
Echinacea purpurea 'Avalanche'  - purple coneflower
Echinacea purpurea 'Coconut Lime'  - purple coneflower
Echinacea purpurea 'Cygnet White'  - purple coneflower
Echinacea purpurea 'Doubledecker'  - purple coneflower
Echinacea purpurea 'Finale White'  - purple coneflower
Echinacea purpurea 'Fragrant Angel'  - purple coneflower
Echinacea purpurea 'Green Envy'  - purple coneflower
Echinacea purpurea 'Green Eyes'  - purple coneflower
Echinacea purpurea 'Happy Star'  - purple coneflower
Echinacea purpurea 'Hope'  - purple coneflower
Echinacea purpurea 'Kim's Mop Head'  - purple coneflower
Echinacea purpurea 'Lilliput'  - purple coneflower
Echinacea purpurea 'Little Annie'  - purple coneflower
Echinacea purpurea 'Little Giant'  - purple coneflower
Echinacea purpurea 'Lucky Star'  - purple coneflower
Echinacea purpurea 'Magnus'  - purple coneflower
Echinacea purpurea 'Meringue'  - purple coneflower
Echinacea purpurea 'Merlot'  - purple coneflower
Echinacea purpurea 'Mistral'  - purple coneflower
Echinacea purpurea 'Ovation'  - purple coneflower
Echinacea purpurea 'Pica Bella'  - purple coneflower
Echinacea purpurea 'PowWow White'  - purple coneflower
Echinacea purpurea 'Prairie Frost'  - purple coneflower
Echinacea purpurea 'Prairie Giant'  - purple coneflower
Echinacea purpurea 'Razzmatazz'  - purple coneflower
Echinacea purpurea 'Red Knee High'  - purple coneflower
Echinacea purpurea 'Ruby Giant'  - purple coneflower
Echinacea purpurea 'Sir Lancelot'  - purple coneflower
Echinacea purpurea 'Sparkler'  - purple coneflower
Echinacea purpurea 'The King'  - purple coneflower
Echinacea purpurea 'Vintage Wine'  - purple coneflower
Echinacea purpurea 'Virgin'  - purple coneflower
Echinacea purpurea 'White Lustre'  - purple coneflower
Echinacea purpurea 'White Swan'  - purple coneflower
Echinacea 'Raspberry Tart'  - purple coneflower
Echinacea sanguinea  - echinacea
Echinacea 'Secret Glow'  - coneflower
Echinacea 'Secret Lust'  - coneflower
Echinacea simulata  - glade coneflower
Echinacea 'Snow Cone'  - eastern coneflower
Echinacea 'Solar Flare'  - coneflower
Echinacea 'Sunbird'  - coneflower
Echinacea 'Tanager'  - coneflower
Echinacea tennesseensis  - Tennessee coneflower
Echinacea tennesseensis 'Rocky Top'  - Tennessee coneflower
Echinacea 'Tiki Torch'  - coneflower
Echinacea 'Tomato Soup'  - coneflower
Echinacea 'White Mist'  - coneflower
Echinops bannaticus  - globe thistle
Echinops bannaticus 'Blue Glow'  - blue globe thistle
Echinops gmelinii  - globe thistle
Echinops ritro  - small globe thistle
Echinops ritro subsp. ruthenicus  - small globe thistle
Echinops ritro 'Veitch's Blue'  - small globe thistle
Echinops sphaerocephalus  - great globe thistle
Echinops sphaerocephalus 'Arctic Glow'  - great globe thistle
Echium candicans  - pride of Madeira
Echium vulgare  - viper's bugloss
Echium wildpretii  - tower of jewels
Edgeworthia chrysantha  - paperbush
Eichhornia crassipes  - common water hyacinth
Elaeagnus angustifolia  - Russian olive
Elaeagnus × ebbingei  - oleaster
Elaeagnus macrophylla  - oleaster
Elaeagnus pungens  - thorny olive
Elaeagnus umbellata  - autumn olive
Eleocharis dulcis  - Chinese water chestnut
Eleocharis palustris  - creeping spike rush
Elephantopus carolinianus  - elephant's foot
Elettaria cardamomum  - cardamom
Ellisiophyllum pinnatum  - ellisiophyllum
Elodea canadensis  - Canadian pondweed
Elsholtzia stauntonii  - mint-shrub
Elymus canadensis  - Canada wild rye
Elymus hystrix  - bottlebrush grass
Elymus virginicus  - Virginia wild rye
Elytrigia elongata 'Jose Select'  - tall wheatgrass
Encephalartos altensteinii  - prickly cycad
Encephalartos horridus  - eastern Cape blue cycad
Enemion biternatum  - false rue anemone
Enkianthus campanulatus  - furin-tsutsuji
Enkianthus perulatus  - white enkianthus
Ensete ventricosum  - Abyssinian banana
Eomecon chionantha  - snow poppy
Epilobium californica 'Bowman'  - hummingbird's trumpet
Epimedium (#530)  - bishop's hat
Epimedium acuminatum  - bishop's hat
Epimedium alpinum  - bishop's hat
Epimedium brachyrrhizum  - bishop's hat
Epimedium brevicornu  - bishop's hat
Epimedium × cantabrigiense  - bishop's hat
Epimedium diphyllum  - bishop's hat
Epimedium fargesii  - bishop's hat
Epimedium franchetii  - bishop's hat
Epimedium grandiflorum  - bishop's hat
Epimedium ilicifolium  - bishop's hat
Epimedium latisepalum  - bishop's hat
Epimedium leptorrhizum  - bishop's hat
Epimedium lishihchenii  - bishop's hat
Epimedium perralderianum  - bishop's hat
Epimedium pinnatum  - bishop's hat
Epimedium pubescens  - bishop's hat
Epimedium pubigerum  - bishop's hat
Epimedium × rubrum  - bishop's hat
Epimedium sempervirens  - bishop's hat
Epimedium stellulatum  - bishop's hat
Epimedium 'Tama-no-genpei'  - bishop's hat
Epimedium × versicolor 'Sulphureum'  - bishop's hat   ( POM )
Epimedium × warleyense  - bishop's hat
Epimedium × youngianum  - bishop's hat
Epimedium 'Yubae'  - bishop's hat
Epipactis palustris  - marsh helleborine
Epipremnum aureum  - golden pothos
Epipremnum aureum 'Neon'  - pothos   ( POM )
Episcia cupreata  - flame violet
Equisetum hyemale  - scouringrush horsetail
Eragrostis spectabilis  - purple lovegrass
Eragrostis trichodes  - sand lovegrass
Eranthemum pulchellum  - blue sage
Eranthis hyemalis  - winter aconite
Eremurus himalaicus  - foxtail lily
Eremurus robustus  - giant desert candle
Erianthus alopecuroides  - silver plume grass
Erica arborea  - tree heath
Ericameria nauseosa  - rubber rabbitbrush
Erigeron philadelphicus  - common fleabane
Erigeron pulchellus  - Robin's plantain
Eriogonum umbellatum  - sulphur flower
Erodium chrysanthum  - yellow heron's bill
Eryngium alpinum  - eryngo
Eryngium aquaticum  - eryngo
Eryngium bourgatii  - Mediterranean sea holly
Eryngium giganteum  - Miss Willmott's ghost
Eryngium planum  - sea holly
Eryngium variifolium  - variable-leaved sea holly
Eryngium yuccifolium  - rattlesnake master   ( POM )
Eryngium yuccifolium 'Kershaw Blue'  - rattlesnake master
Eryngium yuccifolium 'Prairie Moon'  - rattlesnake master
Erysimum capitatum  - coastal wallflower
Erysimum cheiri  - wallflower
Erythrina × bidwillii  - coral tree
Erythrina crista-galli  - cry-baby tree
Erythronium albidum  - white dog's-tooth violet
Erythronium americanum  - yellow trout-lily
Escallonia cordobensis  - escallonia
Escallonia × rigida  - escallonia
Eschscholzia californica  - California poppy
Etlingera elatior  - torch ginger
Eubotrys racemosa  - Eubotrys
Eucalyptus cinerea  - argyle-apple
Eucalyptus dalrympleana  - mountain gum
Eucalyptus deglupta  - Indonesian gum
Eucalyptus perriniana  - silver-dollar gum
Eucharis amazonica  - Amazon lily
Eucomis comosa  - pineapple lily
Eucomis comosa 'African Night'  - pineapple lily
Eucomis 'Dark Star'  - pineapple lily
Eucomis 'Freckles'  - pineapple lily
Eucommia ulmoides  - hardy rubber tree
Euonymus alatus  - winged spindle tree
Euonymus alatus 'Compactus'  - dwarf-winged burning bush
Euonymus alatus 'Odom' LITTLE MOSES  - winged spindle tree
Euonymus alatus 'Rudy Haag'  - winged spindle tree
Euonymus americanus  - strawberry bush
Euonymus atropurpureus  - eastern wahoo
Euonymus bungeanus  - spindletree
Euonymus carnosus  - euonymus
Euonymus europaeus  - European spindletree
Euonymus fortunei  - winter creeper
Euonymus fortunei 'Canadale Gold'  - wintercreeper euonymus
Euonymus fortunei 'Coloratus'  - wintercreeper euonymus
Euonymus fortunei 'Emerald Gaiety'  - wintercreeper euonymus
Euonymus fortunei 'Emerald 'n' Gold'  - wintercreeper euonymus
Euonymus fortunei 'Kewensis'  - wintercreeper euonymus
Euonymus grandiflorus  - spindletree
Euonymus japonicus  - euonymus
Eupatorium altissimum  - tall thoroughwort
Eupatorium chinense  - hemp agrimony
Eupatorium perfoliatum  - American boneset
Euphorbia cotinifolia  - Mexican shrubby spurge
Euphorbia cyparissias  - cypress spurge
Euphorbia dulcis  - sweet spurge
Euphorbia 'Helena'  - spurge
Euphorbia 'Jessie'  - spurge
Euphorbia lactea  - mottled spurge
Euphorbia lactea 'White Ghost'  - mottled spurge
Euphorbia marginata  - snow on the mountain
Euphorbia milii  - christplant
Euphorbia myrsinites  - myrtle spurge
Euphorbia palustris  - bog spurge
Euphorbia polychroma  - cushion spurge
Euphorbia polychroma 'Candy'  - cushion spurge
Euphorbia pulcherrima  - poinsettia
Euphorbia rigida  - spurge
Euphorbia tirucalli  - Indian tree spurge
Euphorbia trigona  - African milk tree
Eurybia divaricata  - white wood aster
Eurybia divaricata 'Eastern Star'  - white wood aster
Eurybia divaricata 'Tiney Hiney'  - white wood aster
Eurybia furcata  - forked aster
Eurybia hemispherica  - southern prairie aster
Eurybia macrophylla  - large-leaved aster
Eurybia paludosa  - aster
Euscaphis japonica  - euscaphis
Eustoma grandiflorum  - lisianthus
Eutrochium dubium  - coastal plain joe pye weed
Eutrochium fistulosum  - Joe-pyeweed
Eutrochium maculatum  - Joe Pye weed
Eutrochium 'Phantom'  - Joe Pye weed
Eutrochium purpureum  - Joe Pye weed
Evolvulus BLUE MY MIND  - evolvulus
Evolvulus glomeratus  - Brazilian dwarf morning-glory
Evolvulus nuttallianus  - evolvulus
Exacum affine  - Persian violet
Exochorda racemosa  - pearlbush
Exochorda serratifolia  - pearlbush
Fagus grandifolia  - American beech
Fagus sylvatica  - common beech
Fagus sylvatica 'Pendula'  - European beech
Fagus sylvatica 'Riversii'  - European beech
Fagus sylvatica 'Rohanii'  - European beech
Fagus sylvatica 'Tricolor'  - European beech
Fallopia baldschuanica  - silver lace vine
Farfugium japonicum  - leopard plant
Fargesia rufa  - hardy bamboo
Fatsia japonica  - glossy-leaved paper plant
Fatsia japonica 'Spider's Web'  - glossy-leaved paper plant
Felicia amelloides  - blue daisy
Festuca amethystina 'Klose'  - tufted fescue
Festuca arundinacea (mix)  - tall fescue
Festuca 'Cool as Ice'  - tall fescue
Festuca glauca  - blue fescue
Festuca longifolia  - hard fescue
Festuca rubra 'Pennlawn'  - red fescue
Ficaria verna  - fig buttercup
Ficus benjamina  - weeping fig
Ficus carica  - edible fig
Ficus elastica  - Indian rubberplant
Ficus elastica 'Burgundy'  - India rubber plant
Ficus lyrata  - fiddle-leaf fig
Ficus petiolaris  - rock fig
Ficus pumila  - climbing fig
Ficus religiosa  - sacred bo tree
Filipendula denudata  - meadowsweet
Filipendula 'Kahome'  - meadowsweet
Filipendula rubra  - queen of the prairie
Filipendula ulmaria  - meadowsweet
Filipendula vulgaris  - dropwort
Firmiana simplex  - Chinese parasol tree
Flueggea suffruticosa  - yi yè qiu
Foeniculum vulgare  - sweet fennel
Foeniculum vulgare var. azoricum  - florence fennel
Fokienia hodginsii  - fokienia
Fontanesia fortunei  - fontanesia
Forsythia 'Courtasol' GOLD TIDE  - forsythia   ( POM )
Forsythia 'Fiesta'  - forsythia
Forsythia × intermedia  - border forsythia
Forsythia × intermedia 'Sunrise'  - border forsythia
Forsythia 'Meadowlark'  - forsythia
Forsythia ovata  - Korean forsythia
Forsythia suspensa  - weeping forsythia
Forsythia viridissima 'Border Gem'  - greenstem forsythia
Forsythia viridissima 'Bronxensis'  - greenstem forsythia
Fortunearia sinensis  - fortunearia
Fothergilla gardenii  - dwarf fothergilla   ( POM )
Fothergilla gardenii 'Blue Mist'  - dwarf fothergilla
Fothergilla gardenii 'Jane Platt'  - dwarf fothergilla
Fothergilla gardenii 'Suzanne'  - dwarf fothergilla
Fothergilla gardenii 'Windy City'  - dwarf fothergilla
Fothergilla major  - mountain witch alder
Fothergilla major 'Arkansas Beauty'  - large fothergilla
Fothergilla major 'Red Licorice'  - large fothergilla
Fothergilla 'Mount Airy'  - dwarf fothergilla
Fragaria 'Allstar'  - strawberry
Fragaria × ananassa BERRIES GALORE  - junebearing strawberry
Fragaria × ananassa 'Honeoye'  - junebearing strawberry
Fragaria × ananassa 'Maxim'  - junebearing strawberry
Fragaria × ananassa 'Ruby Ann'  - everbearing strawberry
Fragaria 'Cavendish'  - strawberry
Fragaria 'Dunlap'  - strawberry
Fragaria 'Earliglo'  - strawberry
Fragaria EVERSWEET  - everbearing strawberry
Fragaria 'Fort Laramie'  - strawberry
Fragaria 'Lipstick'  - strawberry
Fragaria 'Mara des Bois'  - wild strawberry
Fragaria 'Ozark Beauty'  - everbearing strawberry
Fragaria 'Surecrop'  - junebearing strawberry
Fragaria 'Tribute'  - everbearing strawberry
Fragaria vesca  - wild strawberry
Fragaria vesca 'Alexandra'  - woodland strawberry
Fragaria vesca 'Semperflorens'  - wild strawberry
Fragaria virginiana  - scarlet strawberry
Frangula alnus 'Asplenifolia'  - alder buckthorn
Frangula alnus 'Columnaris'  - alder buckthorn
Frangula alnus 'Ron Williams'  - alder buckthorn
Frangula caroliniana  - Carolina buckthorn   ( POM )
Franklinia alatamaha  - Franklin tree
Fraxinus americana  - white ash
Fraxinus excelsior  - European ash
Fraxinus excelsior 'Hessei'  - European ash
Fraxinus mandshurica  - Manchurian ash
Fraxinus ornus  - flowering ash
Fraxinus pennsylvanica  - green ash
Fraxinus profunda  - pumpkin ash
Freesia (group)  - freesia
Fremontodendron californicum  - California flannelbush
Freycinetia cumingiana  - freycinetia
Freycinetia multiflora  - freycinetia
Fritillaria imperialis  - crown imperial
Fritillaria imperialis 'Lutea'  - crown imperial
Fritillaria imperialis 'Rubra'  - crown imperial   ( POM )
Fritillaria meleagris  - snake's head fritillary
Fritillaria persica  - Persian lily
Fritillaria raddeana  - fritillary
Fuchsia 'Gartenmeister'  - lady's eardrops
Fuchsia (group)  - lady's eardrops
Gaillardia aestivalis  - lance leaf blanket flower
Gaillardia aristata  - blanket flower
Gaillardia aristata 'Bijou'  - blanket flower
Gaillardia 'Arizona Apricot'  - blanket flower
Gaillardia 'Arizona Sun'  - blanket flower
Gaillardia 'Frenzy'  - blanket flower
Gaillardia × grandiflora  - blanket flower
Gaillardia pulchella  - Indian blanket
Gaillardia 'Tizzy'  - blanket flower
Gaillardia 'Tokajer'  - blanket flower
Galanthus alpinus  - snowdrop
Galanthus elwesii  - snowdrop
Galanthus ikariae  - snowdrop
Galanthus nivalis  - snowdrop
Galium boreale  - northern bedstraw
Galium circaezans  - licorice bedstraw
Galium odoratum  - sweetscented bedstraw
Galium verum  - yellow spring bedstraw
Galphimia gracilis  - slender goldshower
Garcinia mangostana  - mangosteen
Gardenia jasminoides  - gardenia
Gardenia thunbergia  - Thunberg's gardenia
Garrya × issaquahensis  - tassel bush
Gaultheria procumbens  - wintergreen
Gaura 'Florgaure' GAUDI RED  - Lindheimer's beeblossom
Gaura 'So White'  - gaura
Gazania (group)  - treasure flower
Gazania linearis 'Colorado Gold'  - treasure flower
Gazania rigens  - treasure flower
Gelsemium sempervirens  - Carolina yellow jasmine
Genista spachiana  - broom
Genista tinctoria  - Dyer's broom
Gentiana acaulis  - gentian
Gentiana alba  - gentian
Gentiana andrewsii  - closed gentian
Gentiana linearis  - narrowleaf gentian
Gentiana lutea  - great yellow gentian
Geranium 'Azure Rush'  - cranesbill
Geranium 'Bertie Crûg'  - cranesbill
Geranium 'Blue Cloud'  - cranesbill
Geranium cinereum 'Janette'  - hardy geranium
Geranium clarkei  - hardy geranium
Geranium 'Dilys'  - cranesbill
Geranium 'Dragon Heart'  - cranesbill
Geranium 'Gernic' SUMMER SKIES  - hardy geranium
Geranium 'Gerwat' ROZANNE  - cranesbill   ( POM )
Geranium macrorrhizum  - cranesbill
Geranium maculatum  - wild geranium
Geranium maculatum 'Espresso'  - spotted geranium
Geranium 'Nimbus'  - cranesbill
Geranium 'Orion'  - cranesbill
Geranium 'Orkney Cherry'  - cranesbill
Geranium palmatum  - Canary Island geranium
Geranium 'Patricia'  - cranesbill
Geranium phaeum  - hardy geranium
Geranium pratense  - meadow geranium
Geranium psilostemon  - cranesbill
Geranium renardii  - cranesbill
Geranium sanguineum  - bloody geranium
Geranium sanguineum 'Alan Bloom'  - bloody cranesbill
Geranium sanguineum 'Album'  - hardy geranium
Geranium sanguineum 'Elke'  - bloody cranesbill
Geranium sanguineum 'John Elsley'  - bloody cranesbill
Geranium sanguineum 'Little Bead'  - bloody cranesbill
Geranium sanguineum 'Max Frei'  - bloody cranesbill
Geranium sanguineum var. striatum  - bloody cranesbill
Geranium sanguineum 'Vision'  - bloody cranesbill
Geranium subcaulescens  - hardy geranium
Geranium 'Tanya Rendall'  - hardy geranium
Geranium 'Tiny Monster'  - cranesbill
Geranium wlassovianum  - cranesbill
Gerbera jamesonii  - Transvaal daisy
Geum 'Borisii'  - avens
Geum coccineum  - avens
Geum 'Fire Storm'  - avens
Geum 'Mai Tai'  - avens
Geum rivale  - water avens
Geum 'Sea Breeze'  - avens
Geum triflorum  - prairie smoke
Gillenia stipulata  - American ipecac
Gillenia trifoliata  - Indian physic
Ginkgo biloba  - maidenhair tree
Ginkgo biloba 'Autumn Gold'  - maidenhair tree   ( POM )
Ginkgo biloba 'Chi-Chi'  - maidenhair tree
Ginkgo biloba 'Fastigiata'  - maidenhair tree
Ginkgo biloba 'Jade Butterflies'  - maidenhair tree
Ginkgo biloba 'JN9' SKY TOWER  - maidenhair tree
Ginkgo biloba 'Magyar'  - maidenhair tree
Ginkgo biloba 'Mariken'  - maidenhair tree
Ginkgo biloba (Pendula Group)  - maidenhair tree
Ginkgo biloba 'Praga'  - maidenhair tree
Ginkgo biloba 'Princeton Sentry'  - maidenhair tree
Ginkgo biloba 'Shangri-La'  - maidenhair tree
Ginkgo biloba 'Troll'  - maidenhair tree
Ginkgo biloba 'Tubifolia'  - maidenhair tree
Gladiolus 'Atom'  - gladiolus
Gladiolus cardinalis  - waterfall gladiolus
Gladiolus 'Caribbean'  - gladiolus
Gladiolus communis var. byzantinus  - Byzantine gladiolus
Gladiolus 'Flevo Jive'  - gladiolus
Gladiolus 'Flevo Ocean'  - gladiolus
Gladiolus (group)  - gladiolus
Gladiolus (hardy mix)  - gladiolus
Gladiolus murielae  - peacock gladiolus
Gladiolus 'Sapporo'  - gladiolus
Glandularia bipinnatifida  - prairie verbena
Glandularia canadensis  - rose verbena
Gleditsia triacanthos  - honey locust
Gleditsia triacanthos f. inermis  - imperial honey locust
Globularia bisnagarica  - globularia
Glumicalyx goseloides  - glumicalyx
Glycine max  - soy bean
Glyptostrobus pensilis  - Chinese water-pine
Goeppertia roseopicta  - goeppertia
Gomphocarpus physocarpus  - balloon plant
Gomphrena FOREST PINK  - globe amaranth
Gomphrena globosa  - common globe amaranth
Gomphrena globosa 'Buddy Purple'  - globe amaranth   ( POM )
Gomphrena globosa 'Buddy Rose'  - globe amaranth   ( POM )
Gomphrena globosa 'Buddy White'  - globe amaranth   ( POM )
Gomphrena haageana  - button flower
Goniolimon incanum  - goniolimon
Goniolimon tataricum  - statice
Goodyera pubescens  - rattlesnake plantain
Gossypium herbaceum  - levant cotton
Gossypium tomentosum  - Hawaiian cotton
Graptophyllum pictum  - caricature plant
Grindelia lanceolata  - gum plant
Guaiacum sanctum  - lignum vitae
Guazuma ulmifolia  - West Indian elm
Gunnera manicata  - giant rhubarb
Gunnera tinctoria  - gunnera
Guzmania lingulata  - scarlet star
Gymnaster savatieri  - gymnaster
Gymnocladus dioicus  - Kentucky coffee tree   ( POM )
Gynura aurantiaca  - velvet plant
Gypsophila aretioides  - baby's breath
Hacquetia epipactis  - hacquetia
Hakonechloa macra  - Japanese forest grass
Hakonechloa macra 'All Gold'  - Japanese forest grass
Hakonechloa macra 'Aureola'  - Japanese forest grass
Hakonechloa macra 'Beni-kaze'  - Japanese forest grass
Hakonechloa macra 'Fubuki'  - Japanese forest grass
Hakonechloa macra 'HABsf1007' SUNFLARE  - Japanese forest grass
Hakonechloa macra 'Nicolas'  - Japanese forest grass
Hakonechloa macra 'Stripe It Rich'  - Japanese forest grass
Halesia carolina  - Carolina silverbell   ( POM )
Halesia diptera  - silverbell tree
Halesia diptera (Magniflora Group)  - silverbell tree   ( POM )
Halesia monticola  - silverbell tree
Hamamelis 'Amethyst'  - witch hazel
Hamamelis 'Brevipetala'  - Chinese witch hazel
Hamamelis 'Danny'  - witch hazel
Hamamelis 'Fire Blaze'  - witch hazel
Hamamelis japonica  - Japanese witch hazel
Hamamelis japonica 'Arborea'  - Japanese witch hazel
Hamamelis japonica var. obtusata  - Japanese witch hazel
Hamamelis mollis  - Chinese witch hazel
Hamamelis mollis 'Bonny Brook'  - Chinese witch hazel
Hamamelis mollis 'Fred Chittenden'  - Chinese witch hazel
Hamamelis mollis 'Gold Edge'  - Chinese witch hazel
Hamamelis mollis 'Goldcrest'  - Chinese witch hazel
Hamamelis mollis 'Imperialis'  - Chinese witch hazel
Hamamelis mollis 'Jermyns Gold'  - Chinese witch hazel
Hamamelis mollis 'Princeton Gold'  - Chinese witch hazel
Hamamelis mollis 'Sweet Sunshine'  - Chinese witch hazel
Hamamelis mollis 'Wisley Supreme'  - Chinese witch hazel
Hamamelis 'Rochester'  - witch hazel
Hamamelis vernalis  - Ozark witch hazel   ( POM )
Hamamelis vernalis 'Autumn Embers'  - Ozark witch hazel
Hamamelis vernalis 'Carnea'  - Ozark witch hazel
Hamamelis vernalis 'Kohankie Red'  - Ozark witch hazel
Hamamelis vernalis 'Purpurea'  - Ozark witch hazel
Hamamelis vernalis 'Sandra'  - Ozark witch hazel
Hamamelis vernalis 'Squib'  - Ozark witch hazel
Hamamelis virginiana  - common witch hazel
Hamamelis virginiana 'Green Thumb'  - common witch hazel
Hamamelis virginiana 'Little Suzie'  - common witch hazel
Hamamelis virginiana 'Mohonk Red'  - common witch hazel
Hamelia patens  - scarlet bush   ( POM )
Hasteola suaveolens  - false Indian plantain
Hedera colchica  - Persian ivy
Hedera colchica 'Dentata Variegata'  - bullock's heart ivy
Hedera helix  - English ivy
Hedera helix 'Arborescens'  - English ivy
Hedera helix 'Glacier'  - English ivy
Hedera helix 'Midas Touch'  - English ivy
Hedera helix 'Tango'  - English ivy
Hedera helix var. baltica  - English ivy
Hedychium 'Ayo'  - ginger lily
Hedychium coronarium  - white garland-lily
Hedychium 'Tahitian Flame'  - ginger lily
Hedysarum coronarium  - French honeysuckle
Heimia salicifolia  - shrubby yellowcrest
Helenium amarum  - sneezeweed
Helenium autumnale  - sneezeweed
Helenium 'Bruno'  - sneezeweed
Helenium 'Coppelia'  - sneezeweed
Helenium flexuosum  - purple-headed sneezeweed
Helenium 'Kanaria'  - sneezeweed
Helenium 'Rotgold'  - sneezeweed
Helenium 'Ruby Charm'  - sneezeweed
Helenium 'Sombrero'  - sneezeweed
Helenium virginicum  - sneezeweed
Helenium 'Wyndley'  - sneezeweed
Helenium 'Zimbelstern'  - sneezeweed
Helianthella quinquenervis  - little sunflower
Helianthemum mutabile  - rock rose
Helianthus annuus  - common sunflower
Helianthus divaricatus  - sunflower
Helianthus glaucophyllus  - whiteleaf sunflower
Helianthus 'Happy Days'  - sunflower
Helianthus maximiliani  - Maximilian sunflower
Helianthus mollis  - ashy sunflower
Helianthus occidentalis  - sunflower
Helianthus salicifolius  - willow-leaved sunflower   ( POM )
Helianthus salicifolius 'Autumn Gold'  - willow-leaved sunflower
Helianthus salicifolius 'First Light'  - willow-leaved sunflower
Helianthus salicifolius 'Low Down'  - willow-leaved sunflower
Helianthus salicifolius 'Table Mountain'  - willow-leaved sunflower
Helianthus silphioides  - rosinweed sunflower
Helianthus tuberosus  - Jerusalem artichoke
Helichrysum bellum  - everlasting flower
Helichrysum heldreichii  - strawflower
Helichrysum petiolare  - licorice plant
Heliconia schiedeana 'Fire and Ice'  - false bird of paradise
Helictotrichon sempervirens  - blue oat grass
Heliopsis helianthoides  - oxeye sunflower
Heliotropium arborescens  - heliotrope
Helleborus argutifolius  - Corsican hellebore
Helleborus 'Confetti Cake'  - hellebore   ( POM )
Helleborus foetidus  - stinking hellebore
Helleborus foetidus 'Piccadilly'  - stinking hellebore
Helleborus foetidus 'Pontarlier'  - stinking hellebore
Helleborus foetidus 'Sienna'  - stinking hellebore
Helleborus niger  - black hellebore
Helleborus niger 'Altifolius'  - Christmas rose
Helleborus odorus  - hellebore
Helleborus orientalis  - hellebore   ( POM )
Helleborus 'Red Racer'  - hellebore
Helleborus 'Snowbells'  - hellebore
Helleborus 'Walhelivor' IVORY PRINCE  - Christmas rose   ( POM )
Hemerocallis 'Arabian Magic'  - tetraploid daylily
Hemerocallis 'Atoll'  - daylily
Hemerocallis 'Aztec Priestess'  - tetraploid daylily
Hemerocallis 'Baby Lamb'  - tetraploid daylily
Hemerocallis 'Bob Barker'  - tetraploid daylily
Hemerocallis 'Call To Worship'  - tetraploid daylily
Hemerocallis 'Champagne Royale'  - tetraploid daylily
Hemerocallis 'Cherry Berry'  - tetraploid daylily
Hemerocallis 'Cinnamon Pleasure'  - tetraploid daylily
Hemerocallis citrina  - citron daylily
Hemerocallis 'Crown Royal'  - tetraploid daylily
Hemerocallis 'Doug's Red Mercedes'  - tetraploid daylily
Hemerocallis 'Evening Enchantment'  - tetraploid daylily
Hemerocallis fulva  - orange daylily
Hemerocallis 'Golden Tear Drops'  - tetrapoild daylily
Hemerocallis 'Happy Returns'  - daylily   ( POM )
Hemerocallis 'Heron'  - daylily
Hemerocallis 'Judith'  - tetraploid daylily
Hemerocallis 'Katie'  - daylily
Hemerocallis lilioasphodelus  - yellow daylily
Hemerocallis minor  - dwarf yellow daylily
Hemerocallis 'Pony'  - daylily
Hemerocallis 'Respighi'  - tetraploid daylily
Hemerocallis 'Rose'  - tetraploid daylily
Hemerocallis 'Ruffles Elegante'  - tetraploid daylily
Hemerocallis 'Smooch Hollow'  - tetraploid daylily
Hemerocallis 'Strawberry Rose'  - tetraploid daylily
Hemerocallis 'Tiger Time'  - tetraploid daylily
Hemiboea subcapitata  - false sinningia
Hemigraphis 'Exotica'  - hemigraphis   ( POM )
Hepatica americana  - American liverwort
Heptacodium miconioides  - seven-son flower   ( POM )
Heracleum mantegazzianum  - giant hogweed
Herniaria hirsuta  - rupture-wort
Hesperaloe parviflora  - redflower false yucca
Hesperaloe parviflora 'Coral Glow'  - redflower false yucca
Hesperis matronalis  - dame's rocket
Heterotheca camporum  - golden aster
Heuchera 'Amber Waves'  - coral bells
Heuchera americana  - coral bells
Heuchera 'Amethyst Myst'  - coral bells
Heuchera 'Bella Notte'  - coral bells
Heuchera 'Berry Smoothie'  - coral bells
Heuchera 'Black Beauty'  - coral bells
Heuchera 'Blackout'  - coral bells
Heuchera 'Blondie'  - coral bells
Heuchera 'Cappuccino'  - coral bells
Heuchera 'Caramel'  - coral bells   ( POM )
Heuchera 'Champagne'  - coral bells
Heuchera 'Cherry Cola'  - coral bells
Heuchera 'Chocolate Ruffles'  - coral bells   ( POM )
Heuchera 'Chocolate Veil'  - coral bells
Heuchera 'Christa'  - coral bells
Heuchera 'Cinnabar Silver'  - coral bells
Heuchera 'Circus'  - coral bells
Heuchera 'Citronelle'  - coral bells
Heuchera 'Coco'  - coral bells
Heuchera 'Crimson Curls'  - coral bells
Heuchera cylindrica  - coral bells
Heuchera 'Encore'  - coral bells
Heuchera 'Fire Chief'  - coral bells
Heuchera 'Frosted Violet'  - coral bells
Heuchera 'Georgia Peach'  - coral bells
Heuchera 'Ginger Ale'  - coral bells
Heuchera 'Ginger Peach'  - coral bells
Heuchera 'Green Spice'  - coral bells
Heuchera 'Hercules'  - coral bells
Heuchera 'Jade Gloss'  - coral bells
Heuchera 'Lime Marmalade'  - coral bells
Heuchera 'Lime Rickey'  - coral bells
Heuchera 'Mahogany'  - coral bells
Heuchera 'Marmalade'  - coral bells
Heuchera 'Melting Fire'  - coral bells
Heuchera 'Midnight Rose'  - coral bells
Heuchera 'Miracle'  - coral bells
Heuchera 'Mocha'  - coral bells
Heuchera 'Molly Bush'  - coral bells
Heuchera 'Montrose Ruby'  - coral bells
Heuchera 'Mt. St. Helens'  - coral bells
Heuchera 'Oakington Jewel'  - coral bells
Heuchera 'Obsidian'  - coral bells
Heuchera 'Palace Passion'  - coral bells
Heuchera parviflora  - littleflower alumroot
Heuchera parviflora var. puberula  - littleflower alumroot
Heuchera 'Peach Crisp'  - coral bells
Heuchera 'Peach Flambe'  - coral bells
Heuchera 'Pewter Veil'  - coral bells
Heuchera 'Pinot Gris'  - coral bells
Heuchera 'Pinot Noir'  - coral bells
Heuchera 'Plum Pudding'  - coral bells
Heuchera 'Purple Sails'  - coral bells
Heuchera 'Rachel'  - coral bells
Heuchera 'Raspberry Ice'  - coral bells
Heuchera 'Raspberry Regal'  - coral bells
Heuchera 'Rave On'  - coral bells
Heuchera 'Regina'  - coral bells
Heuchera richardsonii  - alum root
Heuchera 'Ruby Veil'  - coral bells
Heuchera sanguinea  - coral bells
Heuchera sanguinea 'Monet'  - coral bells
Heuchera 'Silver Lode'  - coral bells
Heuchera 'Silver Scrolls'  - coral bells
Heuchera 'Snow Angel'  - coral bells
Heuchera 'Southern Comfort'  - coral bells   ( POM )
Heuchera 'Spellbound'  - coral bells
Heuchera 'Tara'  - coral bells
Heuchera 'Tiramisu'  - coral bells
Heuchera 'Veil of Passion'  - coral bells
Heuchera 'Velvet Night'  - coral bells
Heuchera 'Vesuvius'  - coral bells
Heuchera villosa  - hairy alum root
Heuchera villosa 'Autumn Bride'  - hairy alum root
Heuchera villosa 'Brownies'  - hairy alum root
Heuchera villosa 'Chantilly'  - hairy alum root
Heuchera villosa 'Purpurea'  - hairy alum root
× Heucherella 'Gunsmoke'  - foamy bells
× Heucherella 'Hopscotch'  - foamy bells
× Heucherella 'Kimono'  - foamy bells
× Heucherella 'Sunspot'  - foamy bells
× Heucherella 'Twilight'  - foamy bells
Hibiscus '100 Degrees'  - hardy hibiscus
Hibiscus 'Anne Arundel'  - hardy hibiscus
Hibiscus 'Annie J. Hemming'  - hardy hibiscus
Hibiscus 'Blue River II'  - hardy hibiscus   ( POM )
Hibiscus 'Brandy Punch'  - hardy hibiscus
Hibiscus 'Candy Stripe'  - hardy hibiscus
Hibiscus 'Cherry Cheesecake'  - hardy hibiscus
Hibiscus 'Clown'  - hardy hibiscus
Hibiscus coccineus  - scarlet rose mallow
Hibiscus 'Cranberry Crush'  - hardy hibiscus
Hibiscus dasycalyx  - Neches River rosemallow
Hibiscus 'Draped Lady'  - hardy hibiscus
Hibiscus 'Etna Pink'  - hardy hibiscus
Hibiscus 'Everest White'  - common rose mallow
Hibiscus 'Fantasia'  - hardy hibiscus
Hibiscus 'Kopper King'  - hardy hibiscus
Hibiscus laevis  - rose mallow
Hibiscus lasiocarpos  - rose mallow
Hibiscus 'Lester Riegel'  - hardy hibiscus
Hibiscus 'Lord Baltimore'  - hardy hibiscus
Hibiscus 'Matterhorn'  - hardy hibiscus
Hibiscus 'Midnight Marvel'  - hibiscus   ( POM )
Hibiscus moscheutos  - swamp mallow
Hibiscus moscheutos 'Luna Red'  - hardy hibiscus
Hibiscus moscheutos 'Who says'  - common rose mallow
Hibiscus 'Old Yella'  - hibiscus
Hibiscus 'Perfect Storm'  - hardy hibiscus
Hibiscus 'Pitter Patti'  - hardy hibiscus
Hibiscus 'Plum Crazy'  - hardy hibiscus
Hibiscus 'Pyrenees Pink'  - common rose mallow
Hibiscus rosa-sinensis  - Chinese hibiscus
Hibiscus schizopetalus  - fringed rosemallow
Hibiscus 'Summer Storm'  - hardy hibiscus
Hibiscus SUMMERIFIC HOLY GRAIL  - hibiscus   ( POM )
Hibiscus 'Sweet Caroline'  - hardy hibiscus
Hibiscus syriacus  - rose of Sharon
Hibiscus syriacus 'Aphrodite'  - rose of Sharon
Hibiscus syriacus 'Diana'  - rose of Sharon   ( POM )
Hibiscus syriacus 'Helene'  - rose of Sharon
Hibiscus syriacus 'Lucy'  - rose of Sharon
Hibiscus syriacus 'Minerva'  - rose of Sharon
Hibiscus tiliaceus  - sea hibiscus
Hibiscus trionum  - flower of an hour
Hibiscus 'Turn of the Century'  - hardy hibiscus
Hildegardia barteri  - hildegardia
Hippeastrum (group)  - amaryllis
Hippophae rhamnoides  - sea buckthorn
Holcus mollis 'Albovariegatus'  - creeping velvetgrass
Hosta 'Abby'  - hosta
Hosta 'Big Daddy'  - hosta
Hosta 'Brim Cup'  - hosta
Hosta cathayana  - Chinese hosta
Hosta clausa  - hosta
Hosta 'Cody'  - hosta
Hosta 'Daybreak'  - hosta
Hosta 'Decorata'  - hosta
Hosta densa  - hosta
Hosta 'El Nino'  - hosta
Hosta elata  - hosta
Hosta 'Floradora'  - hosta
Hosta 'Fog Light'  - hosta
Hosta 'Francee'  - hosta
Hosta 'Gold Drop'  - hosta
Hosta 'Guacamole'  - hosta
Hosta hypoleuca  - hosta
Hosta 'Janet'  - hosta
Hosta 'Key West'  - hosta
Hosta 'King Tut'  - hosta
Hosta lancifolia  - narrow-leaved hosta
Hosta 'Liberty'  - hosta
Hosta longipes  - hosta
Hosta longissima  - hosta
Hosta 'Miss Ruby'  - hosta
Hosta 'Patriot'  - hosta
Hosta 'Pizzazz'  - hosta
Hosta plantaginea  - hosta
Hosta 'Ruffles'  - hosta
Hosta rupifraga  - hosta
Hosta 'Sagae'  - hosta
Hosta sieboldiana  - hosta
Hosta 'So Sweet'  - hosta
Hosta 'Spritzer'  - hosta
Hosta 'Stiletto'  - hosta
Hosta 'Tattoo'  - hosta
Hosta ventricosa  - hosta
Hosta venusta  - hosta
Hosta 'Wheee!'  - hosta
Hosta 'Wide Brim'  - hosta
Hosta 'Wolverine'  - hosta
Hosta 'Zounds'  - hosta
Hoya carnosa  - wax plant
Hoya lanceolata subsp. bella  - miniature wax plant
Hoya nummularioides  - wax plant
Humulus lupulus  - common hop
Humulus lupulus 'Aureus'  - common hop
Hyacinthoides hispanica  - Spanish bluebell   ( POM )
Hyacinthoides non-scripta  - English bluebell
Hyacinthus orientalis  - common hyacinth
Hyacinthus orientalis 'Aqua'  - common hyacinth
Hyacinthus orientalis ETOUFFEE  - common hyacinth
Hyacinthus orientalis 'Jan Bos'  - common hyacinth
Hydrangea anomala  - climbing hydrangea
Hydrangea anomala subsp. petiolaris  - climbing hydrangea   ( POM )
Hydrangea arborescens  - smooth hydrangea   ( POM )
Hydrangea arborescens 'Abetwo' INCREDIBALL  - smooth hydrangea   ( POM )
Hydrangea arborescens 'Annabelle'  - smooth hydrangea
Hydrangea arborescens 'Hayes Starburst'  - smooth hydrangea   ( POM )
Hydrangea arborescens LIL ANNIE  - smooth hydrangea
Hydrangea aspera 'Burgundy Bliss'  - rough-leaved hydrangea
Hydrangea barbara  - climbing hydrangea
Hydrangea heteromalla  - hydrangea
Hydrangea macrophylla  - bigleaf hydrangea
Hydrangea macrophylla 'Amethyst'  - bigleaf hydrangea
Hydrangea macrophylla 'Big Daddy'  - bigleaf hydrangea
Hydrangea macrophylla 'Blaumeise'  - bigleaf hydrangea
Hydrangea macrophylla 'Dooley'  - bigleaf hydrangea
Hydrangea macrophylla 'Enziandom'  - bigleaf hydrangea
Hydrangea macrophylla (group)  - bigleaf hydrangea
Hydrangea macrophylla 'H213906' JIP  - bigleaf hydrangea
Hydrangea macrophylla 'Homigo'  - bigleaf hydrangea
Hydrangea macrophylla 'Izu-no-hana'  - bigleaf hydrangea
Hydrangea macrophylla 'Lemon Wave'  - bigleaf hydrangea
Hydrangea macrophylla 'Maculata'  - bigleaf hydrangea
Hydrangea macrophylla 'Mariesii'  - bigleaf hydrangea
Hydrangea macrophylla 'Mini Penny'  - bigleaf hydrangea
Hydrangea macrophylla 'Mousmee'  - bigleaf hydrangea
Hydrangea macrophylla 'Mowe'  - bigleaf hydrangea
Hydrangea macrophylla 'Nigra'  - bigleaf hydrangea
Hydrangea macrophylla 'Nikko Blue'  - bigleaf hydrangea
Hydrangea macrophylla 'Otaksa'  - bigleaf hydrangea
Hydrangea macrophylla 'Penny Mac'  - bigleaf hydrangea
Hydrangea macrophylla 'Pia'  - bigleaf hydrangea
Hydrangea macrophylla 'Shamrock'  - bigleaf hydrangea
Hydrangea macrophylla 'Taube'  - bigleaf hydrangea
Hydrangea paniculata  - panicle hydrangea
Hydrangea paniculata 'Bombshell'  - panicle hydrangea
Hydrangea paniculata 'Grandiflora'  - panicle hydrangea
Hydrangea paniculata 'Ilvobo' BOBO  - panicle hydrangea   ( POM )
Hydrangea paniculata 'Limelight'  - panicle hydrangea   ( POM )
Hydrangea paniculata 'Little Lamb'  - panicle hydrangea
Hydrangea paniculata 'Phantom'  - panicle hydrangea
Hydrangea paniculata 'Tardiva'  - panicle hydrangea
Hydrangea paniculata 'White Moth'  - panicle hydrangea
Hydrangea 'Preziosa'  - hydrangea
Hydrangea quercifolia  - oakleaf hydrangea   ( POM )
Hydrangea quercifolia 'Alice'  - oakleaf hydrangea
Hydrangea quercifolia 'Amethyst'  - oakleaf hydrangea
Hydrangea quercifolia 'Flemygea' SNOW QUEEN  - oakleaf hydrangea   ( POM )
Hydrangea quercifolia 'Munchkin'  - oakleaf hydrangea
Hydrangea quercifolia 'Pee Wee'  - oakleaf hydrangea
Hydrangea sargentiana  - bigleaf hydrangea
Hydrangea serrata  - hydrangea
Hydrastis canadensis  - golden seal
Hydrocleys nymphoides  - water poppy
Hydrocotyle vulgaris  - pennywort
Hydrophyllum virginianum  - Virginia waterleaf
Hylotelephium 'Carl'  - stonecrop
Hylotelephium 'Maestro'  - stonecrop
Hylotelephium sieboldii  - October daphne
Hylotelephium spectabile  - hylotelephium
Hylotelephium telephium  - stonecrop
Hymenocallis caroliniana  - spider lily
Hymenocallis × festalis  - spider lily
Hymenocallis latifolia  - Cayman Islands spider-lily
Hymenocallis liriosme  - spider lily
Hypericum androsaemum  - sweet-amber
Hypericum ascyron subsp. pyramidatum  - great St. John's wort
Hypericum beanii  - St. John's wort
Hypericum buckleyi  - Buckley's St. Johnswort
Hypericum calycinum  - St. John's wort   ( POM )
Hypericum calycinum 'Briggadoon'  - St. John's wort
Hypericum frondosum 'Sunburst'  - St. John's wort
Hypericum 'Hidcote'  - St. John's wort
Hypericum HYPEARLS RENU  - hypericum
Hypericum × inodorum 'Elstead'  - St. John's wort
Hypericum kalmianum  - Kalm's St. John's wort
Hypericum kalmianum 'Ames'  - Kalm's St. John's wort
Hypericum kouytchense  - large-flowered St. John's wort
Hypericum lissophloeus  - smoothbark St. Johnswort
Hypericum perforatum  - common St. John's wort
Hypericum perforatum 'Topas'  - St. John's wort
Hypericum prolificum  - shrubby St. John's wort
Hypericum sphaerocarpum  - round fruited St. John's wort
Hypoestes phyllostachya  - polka dot plant
Iberis saxatilis  - alpine candytuft
Iberis sempervirens  - candytuft
Iberis SNOWBALL  - candytuft
Ilex aquifolium  - English holly
Ilex × attenuata  - topal holly
Ilex × attenuata 'Fosteri'  - foster holly
Ilex ciliospinosa  - holly
Ilex colchica  - black sea holly
Ilex cornuta  - Chinese holly
Ilex cornuta 'Delcon'  - Chinese holly
Ilex cornuta 'Dwarf Burford'  - Chinese holly
Ilex crenata  - Japanese holly
Ilex crenata 'Drops of Gold'  - Japanese holly
Ilex crenata 'Geisha'  - Japanese holly
Ilex crenata 'Golden Gem'  - Japanese holly
Ilex crenata 'Helleri'  - Japanese holly
Ilex crenata 'Hetzii'  - Japanese holly
Ilex crenata 'Shiro-fukurin'  - Japanese holly
Ilex crenata 'Sky Pencil'  - Japanese holly
Ilex decidua  - possumhaw
Ilex glabra  - inkberry
Ilex glabra 'Chamzin' NORDIC  - nordic inkberry
Ilex 'Jersey Male'  - dwarf holly
Ilex opaca  - American holly
Ilex opaca 'Canary'  - American holly
Ilex opaca 'Chief Paduke'  - American holly
Ilex opaca 'Clarendon'  - American holly
Ilex opaca 'Delia Bradley'  - American holly
Ilex opaca 'Greenleaf'  - American holly
Ilex opaca 'Jersey Knight'  - American holly
Ilex opaca 'Mac's Prince'  - American holly
Ilex opaca 'Mae'  - American holly
Ilex opaca 'Mamie Eisenhower'  - American holly
Ilex opaca 'Maryland Dwarf'  - American holly
Ilex opaca 'McDonald'  - American holly
Ilex opaca 'Miss Helen'  - American holly
Ilex opaca 'W. M. Hawkins'  - American holly
Ilex opaca 'William Hawkins'  - American holly
Ilex pedunculosa  - longstalk holly
Ilex 'Sparkleberry'  - winterberry
Ilex verticillata  - winterberry
Ilex verticillata 'Afterglow'  - winterberry   ( POM )
Ilex verticillata 'Nana' RED SPRITE  - winterberry   ( POM )
Ilex vomitoria  - yaupon
Iliamna remota  - Kankakee mallow
Illicium floridanum  - Florida anise tree
Illicium parviflorum  - small anise tree
Illicium parviflorum 'Florence'  - small anise tree
Impatiens balsamina  - garden balsam
Impatiens BOUNCE SERIES  - impatiens   ( POM )
Impatiens capensis  - jewelweed
Impatiens hawkeri (group)  - New Guinea impatiens
Impatiens omeiana  - hardy impatiens
Impatiens SUNPATIENS COMPACT FIRE RED  - New Guinea impatiens
Impatiens SUNPATIENS SERIES  - New Guinea impatiens   ( POM )
Impatiens walleriana  - busy lizzy
Imperata cylindrica  - cogon grass
Imperata cylindrica 'Rubra'  - Japanese blood grass
Incarvillea delavayi  - incarvillea
Indigofera amblyantha  - Chinese indigo
Indigofera decora  - Chinese indigo
Indigofera decora f. alba  - Chinese indigo
Indigofera tinctoria  - indigofera
Inula britannica  - British yellowhead
Inula conyza  - Ploughman's spikenard
Inula helenium  - elecampane
Iodanthus pinnatifidus  - purple rocket
Ionactis linariifolia  - stiff aster
Ipheion uniflorum  - spring starflower
Ipheion uniflorum 'Jessie'  - spring starflower
Ipomoea alba  - moonflower
Ipomoea aquatica  - swamp morning-glory
Ipomoea batatas  - sweet potato
Ipomoea lobata  - Spanish flag   ( POM )
Ipomoea mauritiana  - morning glory
Ipomoea × multifida  - cardinal climber
Ipomoea pandurata  - wild potato vine
Ipomoea purpurea  - morning glory
Ipomoea quamoclit  - cypress vine   ( POM )
Ipomoea × sloteri  - cardinal climber
Ipomopsis rubra  - standing cypress
Iresine herbstii  - Herbst's bloodleaf
Iresine rhizomatosa  - bloodleaf
Iris 'Adriatic Blue'  - spuria iris
Iris 'America's Cup'  - tall bearded iris
Iris 'Autumn Tryst'  - tall bearded reblooming iris
Iris 'Az Ap'  - intermediate iris
Iris 'Baby Sister'  - Siberian iris
Iris 'Ballet Lesson'  - standard dwarf bearded iris
Iris 'Being Busy'  - standard dwarf bearded iris
Iris 'Beverly Sills'  - tall bearded iris
Iris 'Billionaire'  - tall bearded reblooming iris
Iris 'Bird Feeder'  - Siberian iris
Iris 'Black Gamecock'  - Louisiana iris
Iris 'Blatant'  - tall bearded reblooming iris
Iris 'Blueberry Fair'  - Siberian iris
Iris brevicaulis  - zigzag iris
Iris 'Buckwheat'  - tall bearded reblooming iris
Iris 'Butter and Sugar'  - Siberian iris
Iris 'Caesar's Brother'  - Siberian iris   ( POM )
Iris 'Caroline Gibbs'  - tall bearded reblooming iris
Iris 'Champagne Elegance'  - tall bearded iris
Iris 'Chilled Wine'  - Siberian iris
Iris 'City Lights'  - tall bearded iris
Iris 'Clarence'  - tall bearded reblooming iris
Iris 'Cocoa Pink'  - standard dwarf bearded iris
Iris cristata  - dwarf crested iris
Iris cristata 'Alba'  - dwarf crested iris
Iris cristata 'Powder Blue Giant'  - dwarf crested iris
Iris 'Dance Ballerina Dance'  - Siberian iris
Iris danfordiae  - dwarf iris
Iris 'Dewful'  - Siberian iris
Iris domestica  - blackberry lily
Iris domestica 'Freckle Face'  - blackberry lily
Iris 'Dutch Chocolate'  - tall bearded iris
Iris 'Eagles Flight'  - tall bearded iris
Iris 'Ego'  - Siberian iris
Iris ensata  - Japanese water iris
Iris 'Eric the Red'  - Siberian iris
Iris 'Eye Of The Tiger'  - standard dwarf bearded iris
Iris 'Flavescens'  - tall bearded iris
Iris 'Florentina'  - tall bearded iris
Iris foetidissima  - stinking iris
Iris 'Fourfold White'  - Siberian iris
Iris fulva  - copper iris
Iris fulva 'Lois Yellow'  - copper iris
Iris 'Garden Grace'  - tall bearded reblooming iris
Iris germanica  - iris
Iris graminea  - iris
Iris 'Gull's Wing'  - Siberian iris
Iris 'Halloween Halo'  - tall bearded iris
Iris 'Happy New Year'  - tall bearded reblooming iris
Iris hexagona  - iris
Iris 'Illini Charm'  - Siberian iris
Iris 'Immortality'  - tall bearded iris
Iris japonica  - Japanese iris
Iris 'Jennifer Rebecca'  - tall bearded reblooming iris
Iris 'Kiwi Slices'  - standard dwarf bearded iris
Iris 'Lady Jean'  - tall bearded reblooming iris
Iris 'Lady of Quality'  - Siberian iris
Iris 'Lady Vanessa'  - Siberian iris
Iris 'Lavender Bounty'  - Siberian iris
Iris 'Lemon Duet'  - tall bearded reblooming iris
Iris maackii  - iris
Iris 'Midnight Fragrance'  - tall bearded iris
Iris missouriensis  - Rocky Mountain iris
Iris 'Monty's Sweet Blue'  - bearded iris
Iris 'Northward Ho'  - tall bearded reblooming iris
Iris 'October'  - tall bearded reblooming iris
Iris 'Orville Fay'  - Siberian iris
Iris 'Overjoyed'  - tall bearded iris
Iris 'Pagan Goddess'  - tall bearded reblooming iris
Iris pallida  - Dalmatian iris
Iris pallida 'Dalmatica'  - Dalmatian iris
Iris 'Peach Petal Pie'  - standard dwarf bearded iris
Iris 'Pink Haze'  - Siberian iris
Iris 'Pixie'  - iris
Iris 'Professor Neil'  - Louisiana iris
Iris pseudacorus  - yellow flag
Iris 'Pure As Gold'  - tall bearded reblooming iris
Iris 'Quiet Shape'  - Siberian iris
Iris reticulata  - reticulated iris   ( POM )
Iris 'Rielle'  - border bearded iris
Iris 'Rill'  - Siberian iris
Iris 'Roney's Encore'  - bearded iris
Iris 'Rosalie Figge'  - tall bearded reblooming iris
Iris 'Ruffled Velvet'  - Siberian iris
Iris 'Sable Night'  - tall bearded iris
Iris 'Sally Kerlin'  - Siberian iris
Iris 'September Replay'  - bearded iris
Iris 'Silver Edge'  - Siberian iris
Iris 'Sky Wings'  - Siberian iris
Iris 'Sparkle'  - Siberian iris
Iris 'Spirit of Memphis'  - tall bearded reblooming iris
Iris spuria  - blue iris
Iris 'St. Petersburg'  - tall bearded reblooming iris
Iris 'Stealing Home'  - standard dwarf bearded iris
Iris 'Steve Varner'  - Siberian iris
Iris 'Sun Doll'  - standard dwarf bearded iris
Iris tectorum  - roof iris
Iris 'Turn a Phrase'  - Siberian iris
Iris versicolor  - blue flag
Iris virginica  - southern blue flag
Iris virginica 'Contraband Girl'  - southern blue flag
Iris virginica 'Purple Fan'  - southern blue flag
Iris virginica var. shrevei  - southern blue flag
Iris wattii  - bamboo iris
Iris 'Wavelength'  - standard dwarf bearded iris
Iris 'Whispering Spirits'  - tall bearded iris
Iris 'White Swirl'  - Siberian iris
Iris 'Wild West Wind'  - tall bearded iris
Iris 'Winesap'  - tall bearded reblooming iris
Iris 'Winterland'  - tall bearded reblooming iris
Isatis tinctoria  - Dyer's woad
Isotoma axillaris  - laurentia   ( POM )
Itea ilicifolia  - itea
Itea japonica  - Japanese sweetspire
Itea japonica 'Beppu'  - Japanese sweetspire
Itea virginica  - Virginia sweetspire
Itea virginica 'Henry's Garnet'  - Virginia sweetspire   ( POM )
Itea virginica 'Sarah Eve'  - Virginia sweetspire
Itea virginica 'Saturnalia'  - Virginia sweetspire
Itea virginica 'SMNIVDFC' SCENTLANDIA  - Virginia sweetspire
Itea virginica 'SMNIVMM' FIZZY MIZZY  - Virginia sweetspire
Itea virginica 'Sprich' LITTLE HENRY  - Virginia sweetspire
Ixia maculata  - ixia
Ixora casei  - flame of the woods
Ixora coccinea  - flame of the woods
Jacaranda mimosifolia  - jacarandá
Jacobaea maritima  - silver ragwort
Jasminum nudiflorum  - winter jasmine
Jasminum officinale  - common jasmine
Jasminum sambac  - Arabian jasmine
Jasminum sambac 'Jewel of India'  - Arabian jasmine
Jatropha curcas  - barbados nut
Jatropha multifida  - coralbush
Jeffersonia diphylla  - twinleaf
Juglans cinerea  - butter nut
Juglans nigra  - black walnut
Juglans regia  - English walnut
Juncus dudleyi  - Dudley's rush
Juncus effusus  - common rush   ( POM )
Juncus effusus f. spiralis  - corkscrew rush
Juncus effusus 'Quartz Creek'  - corkscrew rush
Juncus inflexus  - rush
Juncus inflexus 'Afro'  - hard rush
Juncus tenuis  - rush
Juniperus ashei  - ashe juniper
Juniperus chinensis  - Chinese juniper
Juniperus chinensis 'Blue Alps'  - Chinese juniper
Juniperus chinensis 'Blue Vase'  - Chinese juniper
Juniperus chinensis 'Fairview'  - Chinese juniper
Juniperus chinensis 'Kaizuka'  - Hollywood juniper
Juniperus chinensis 'Keteleeri'  - Chinese juniper
Juniperus chinensis 'Perfecta'  - Chinese juniper
Juniperus chinensis 'San Jose'  - Chinese juniper
Juniperus chinensis 'Shimpaku'  - Chinese juniper
Juniperus chinensis 'Spartan'  - Chinese juniper
Juniperus chinensis 'Spearmint'  - Chinese juniper
Juniperus communis  - common juniper
Juniperus communis 'Compressa'  - common juniper
Juniperus communis 'Effusa'  - common juniper
Juniperus communis 'Gold Cone'  - common juniper
Juniperus conferta  - shore juniper
Juniperus horizontalis  - creeping juniper
Juniperus horizontalis 'Limeglow'  - creeping juniper
Juniperus horizontalis 'Pancake'  - creeping juniper
Juniperus horizontalis 'Plumosa'  - creeping juniper
Juniperus horizontalis 'Wiltonii'  - creeping juniper
Juniperus procumbens  - Japanese garden juniper
Juniperus procumbens 'Green Mound'  - Japanese garden juniper   ( POM )
Juniperus procumbens 'Nana'  - Japanese garden juniper
Juniperus recurva var. coxii  - coffin juniper
Juniperus rigida  - needle juniper
Juniperus sabina  - savin juniper
Juniperus sabina 'Broadmoor'  - savin juniper
Juniperus sabina 'Skandia'  - savin juniper
Juniperus sabina 'Variegata'  - savin juniper
Juniperus scopulorum 'Wichita Blue'  - Rocky Mountain juniper
Juniperus squamata 'Blue Carpet'  - singleseed juniper
Juniperus squamata 'Blue Star'  - singleseed juniper
Juniperus squamata 'Holger'  - singleseed juniper
Juniperus squamata 'Meyeri'  - singleseed juniper
Juniperus virginiana  - red cedar
Juniperus virginiana 'Taylor'  - red cedar   ( POM )
Justicia aurea  - yellow jacobinia
Justicia brandegeeana  - shrimp plant
Justicia scheidweileri  - purple shrimp plant
Justicia tweediana  - water willow
Kalanchoe beharensis  - velvet leaf kalanchoe
Kalanchoe blossfeldiana  - kalanchoe
Kalimeris pinnatifida  - false aster
Kalimeris yomena  - kalimeris
Kalmia latifolia  - mountain laurel
Kalmia latifolia 'Bullseye'  - mountain laurel
Kalmia latifolia 'Elf'  - mountain laurel
Kalmia latifolia 'Minuet'  - mountain laurel
Kalmia latifolia 'Ostbo Red'  - mountain laurel
Kalmia latifolia 'Sarah'  - mountain laurel
Kalopanax septemlobus  - castor aralia
Kerria japonica 'Albescens'  - Japanese kerria
Kerria japonica 'Golden Guinea'  - Japanese kerria
Kerria japonica 'Picta'  - Japanese kerria
Kerria japonica 'Pleniflora'  - Japanese kerria
Kerria japonica 'Simplex'  - Japanese kerria
Kigelia africana  - sausage tree
Kirengeshoma koreana  - kirengeshoma
Kirengeshoma palmata  - yellow wax bells
Kitaibelia vitifolia  - Russian hibiscus
Knautia macedonica  - knautia
Knautia macedonica MELTON PASTELS  - Macedonia scabious
Kniphofia 'Border Ballet'  - red-hot poker
Kniphofia brachystachya  - red-hot poker
Kniphofia 'Bressingham Comet'  - red-hot poker
Kniphofia caulescens  - red hot poker
Kniphofia 'Cobra'  - red-hot poker
Kniphofia 'Elvira'  - red hot poker
Kniphofia 'High Roller'  - red-hot poker
Kniphofia 'Joker's Wild'  - red-hot poker
Kniphofia 'Lemon Popsicle'  - red-hot poker
Kniphofia 'Mango Popsicle'  - red-hot poker
Kniphofia 'Nancy's Red'  - red-hot poker
Kniphofia 'Orange Blaze'  - red-hot poker
Kniphofia 'Peachy Cheeks'  - red-hot poker
Kniphofia 'Primrose Beauty'  - red-hot poker
Kniphofia 'Redhot Popsicle'  - red-hot poker
Kniphofia 'Royal Standard'  - red-hot poker
Kniphofia 'Shining Sceptre'  - red-hot poker
Kniphofia uvaria  - red-hot poker
Kniphofia uvaria 'Echo Mango'  - red-hot poker
Koeleria argentea  - silver hairgrass
Koeleria glauca  - grey-blue koeleria
Koeleria macrantha  - Prairie junegrass
Koelreuteria paniculata  - golden rain tree
Kolkwitzia amabilis  - beauty bush
Kosteletzkya virginica  - seashore mallow
Lablab purpureus  - hyacinth bean   ( POM )
Laburnum alpinum  - Scotch laburnum
Laburnum anagyroides  - common laburnum
Laburnum × watereri  - bean tree
Lachnocaulon anceps  - whitehead bogbutton
Lactuca floridana  - lettuce
Lactuca sativa  - lettuce
Lactuca sativa 'Merlot'  - lettuce   ( POM )
Lagenaria siceraria  - bottle gourd
Lagerstroemia 'Acoma'  - crape myrtle   ( POM )
Lagerstroemia 'Apalachee'  - crape myrtle
Lagerstroemia 'Bicolor'  - crape myrtle
Lagerstroemia 'Chickasaw'  - crape myrtle
Lagerstroemia 'Choctaw'  - crape myrtle
Lagerstroemia 'Comanche'  - crape myrtle
Lagerstroemia 'Country Red'  - crape myrtle
Lagerstroemia fauriei  - Japanese crepe myrtle
Lagerstroemia indica  - crape myrtle
Lagerstroemia indica 'Hopi'  - crape myrtle
Lagerstroemia indica 'Zuni'  - crape myrtle
Lagerstroemia 'Lafayette'  - crape myrtle
Lagerstroemia 'Mardi Gras'  - crape myrtle
Lagerstroemia 'Natchez'  - crape myrtle
Lagerstroemia 'New Orleans'  - crape myrtle
Lagerstroemia 'Pixie White'  - crape myrtle
Lagerstroemia 'Pocomoke'  - crape myrtle
Lagerstroemia 'Tonto'  - crape myrtle
Lagerstroemia 'Yuma'  - crape myrtle
Lagunaria patersonii  - Norfolk Island hibiscus
Lamium galeobdolon  - yellow archangel
Lamium maculatum 'Beedham's White'  - spotted deadnettle
Lamium maculatum 'Cosmopolitan'  - spotted deadnettle
Lamium maculatum 'Elisabeth de Haas'  - spotted deadnettle
Lamium maculatum 'Red Nancy'  - spotted deadnettle
Lamium maculatum 'White Nancy'  - spotted deadnettle
Lamprocapnos spectabilis  - bleeding heart
Lantana camara  - lantana
Lantana montevidensis  - trailing lantana
Lantana trifolia  - shrub verbena
Larix decidua  - European larch
Larix gmelinii  - dahurian larch
Larix gmelinii var. olgensis  - dahurian larch
Larix kaempferi  - Japanese larch
Larix kaempferi 'Diana'  - Japanese larch
Larix laricina  - tamarack
Latania lontaroides  - red latan
Lathyrus latifolius  - perennial pea
Lathyrus odoratus  - sweet pea
Lathyrus vernus  - spring vetch
Laurentia fluviatilis  - laurentia
Laurus nobilis  - bay laurel
Lavandula angustifolia  - English lavender
Lavandula angustifolia 'Hidcote'  - English lavender
Lavandula angustifolia 'Munstead'  - English lavender
Lavandula angustifolia 'Rosea'  - English lavender
Lavandula multifida  - French lace
Lavatera arborea  - tree mallow
Lavatera trimestris  - tree mallow
Lawsonia inermis  - henna
Ledebouria cooperi  - Cooper’s African hyacinth
Leea guineensis  - leea
Leitneria pilosa subsp. ozarkana  - Ozark hairy corkwood
Lemna minor  - common duckweed
Leonotis leonurus  - lion's ear
Leontopodium alpinum  - edelweiss
Leontopodium palibinianum  - Siberian edelweiss
Leonurus cardiaca  - motherwort
Leptinella squalida  - brass buttons
Leptodermis oblonga  - leptodermis
Leptospermum scoparium  - broom tea tree
Lespedeza bicolor  - shrub lespedeza
Lespedeza capitata  - bush clover
Lespedeza japonica  - bush clover
Lespedeza thunbergii  - bush clover
Leucanthemella serotina  - leucanthemella
Leucanthemum 'Belgian Lace'  - shasta daisy
Leucanthemum 'Macaroon'  - shasta daisy
Leucanthemum 'Real Charmer'  - shasta daisy
Leucanthemum × superbum  - shasta daisy
Leucanthemum × superbum 'Becky'  - shasta daisy   ( POM )