Gardening Help Search

Plant Samples

Due to the threat of Boxwood Blight and other potential pest/disease issues, the Garden will no longer be allowing samples of Boxwood, Pachysandra or any samples suspected of having serious diseases such as Rose Rosette or Phytophthora to be brought into the garden.

Please help us protect our living plant collection by taking clear photos of the plant you need identified or diagnosed. Images can be emailed to plantinformation@mobot.org or brought to the Plant Doctors at the Center for Home Gardening (Open every day, 9 am - 5 pm).  

For any additional questions regarding samples, please call: 314-577-9562.

Cultivating Orchids for the Home Gardener

Learn how to keep these common household orchids happy and healthy. You can see these and many more in the Orchid Show, February 2nd to March 24th.

Cattylea

Cymbidium

Phalaenopsis

Paphiopedilum

 

Seasonal Gardening Tips

Examine shrubs for winter injury. Prune all dead and weakened wood. 

Shrubs and trees best planted or transplanted in spring, rather than fall, include butterfly bush, dogwood, rose of Sharon, black gum (Nyssa), vitex, red bud, magnolia, tulip poplar, birch, ginkgo, hawthorn and most oaks. 

Look for flowering dogwoods in bloom. 

Break off rims from peat pots when transplanting seedlings, otherwise they can act as a wick to draw moisture away from the roots. 

Transplant Virginia bluebells (Mertensia virginica) after bloom, but before the foliage disappears. 

Evergreen and deciduous hedges may be sheared. Prune the top narrower than the base so sunlight will reach the lower limbs. 

Oaks and hickories bloom. 

Prune spring flowering ornamentals after they finish blooming. 

Finish transplanting broccoli, Brussels sprouts, cabbage, and cauliflower plants into the garden. 

Plants started indoors should be hardend off outdoors in cold frames before being transplanted into the garden. 

Plant bare-root or potted fruit trees as soon as the soil can be worked. 

 

Learn more

Enjoy the fragrant blooms of the Ozark Witch Hazel flowering in shrub borders or wooded areas on warm sunny days.
Enjoy the fragrant blooms of the Ozark Witch Hazel flowering in shrub borders or wooded areas on warm sunny days.
Repot any root-bound house plants now before vigorous growth occurs. Choose a new container that is only 1 or 2 inches larger in diameter than the old pot.
Repot any root-bound house plants now before vigorous growth occurs. Choose a new container that is only 1 or 2 inches larger in diameter than the old pot.
Bloom Time Calendar

See when plants bloom at the Garden:

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Caring for Your Young Trees

Follow our Gardening blog with timely gardening tips, insights, and updates.


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Gardening Help

We have staff available to help you with your gardening questions:

  • Plant Doctors: Master Gardeners can answer your questions in person at the Center for Home Gardening

    Every day, 9 am - 5 pm

  • Horticulture Answer Service: Have your gardening questions answered over the phone: 

    (314) 577-5143

    Mon.-Fri., 9 am to 12 pm

  • Plant Information: Email your gardening questions to: 

    plantinformation@mobot.org