| Scientific Name: | Berberis thunbergii |
| Common Name: | Japanese barberry |
| Family Name: | Berberidaceae |
| Origin: | S.E. Asia / Japan / China |
| Hardiness Zone: | Zone 4: (-34 to -29 °C) |
| Plant Type: | Shrub - deciduous |
| Mature Size: | 1.3 - 2.0m x 1.5 - 2.0m (height x width) |
| Habit: | Dense, Spreading |
| Form: | Round |
| Texture: | Medium - fine |
| Landscape Uses: | Accent plant, Group or mass planting, Hedge row, Security/barrier, Sheared hedge |
| Exposure: | Full sun |
| Soil or Media: | Rocky or gravelly or dry |
| Leaves: | Simple, Alternate, Leathery, Pinnate venation, Glabrous, Obovate, Spatulate, Entire |
| Flowers: | Corymb, Yellow, Red, May-Jun |
| Fruit: | Berry (true), Red, Sep-Oct, (Persistent) |
| Key ID Features: | |
| Deciduous barberry 1-2m tall; leaves alternate, simple, clustered, most blades obovate to spatulate, 1.4-3(-5)cm long x 0.7-2.4cm wide, margins entire; flowers yellow, about 1cm wide; berries red, ellipsoid, ~6-8mm long x 3-4mm wide. Winter ID: single spiny stipule 5-11mm long at each node (usually unbranched); buds globular, about 8-10mm wide, in tight clusters; leaf scars small, crescent shaped; persistent red oval berries. | |