Common Name: Japanese barberry
Type: Deciduous shrub
Zone: 4 to 8
Height: 1.00 to 1.50 feet
Spread: 1.00 to 1.50 feet
Bloom Time: April
Bloom Description: Yellow
Sun: Full sun
Water: Dry to medium
Leaf: Colorful, Good Fall
Other: Winter Interest, Thorns
Tolerate: Deer, Drought, Erosion, Clay Soil, Dry Soil
Easily grown in average, dry to medium, well-drained soil in full sun. Tolerates part shade, but performs best with full sun. This is a very adaptable shrub that is tolerant of urban conditions. Plants also tolerates heat and drought, but are generally intolerant of poorly-drained, wet soils. Plants spread slowly by creeping roots. Plants can also spread by self-seeding (birds will eat the fruits and distribute the seed). Plant branches may root where they touch the ground. This species is considered to be somewhat invasive in some areas (particularly in eastern North America).
Genus name comes from the Latinized form of the Arabian name for the fruit.
Specific epithet honors Swedish botanist Carl Peter Thunberg (1743-1828) who reportedly identified this species in Japan in 1784.
'Bagatelle' is a compact, deciduous selection which forms a 1.5 foot mound of variable-sized, coppery-red leaves. Many branched stems have sharp thorns. Somewhat slow growing. Tiny, yellowish flowers appear in late April to early May, but are often hidden by the foliage and are not considered showy. Bright red berries form in fall and often last through the winter. The berries are attractive to birds.
No serious problems. Some susceptibility to bacterial leaf spot, anthracnose, root rots, wilt, aphids, barberry webworm and scale. Spiny stems often trap unsightly wind-blown trash.
Japanese barberry forms an excellent barrier or hedge. It is also effective when planted in groups or as a specimen.
An excellent specimen shrub for a small space. Also effective in the rock garden or as an edging where the thorns will help create a low barrier.