Description
Berberis – Barberry –
There are about 450 species of evergreen or deciduous shrubs, in this genus. They occur in all parts of the Northern Hemisphere, Northern and Tropical Africa, and South America, that prefers rocky soils in mountainous areas. They produces leather, linear to very broadly ovate or obovate, smooth edged or spine toothed leaves. Weak to quite fierce spines are borne in groups of threes and persist on old, leafless stems. Barberries are grown for their foliage (ornamental or giving good autumn color), small racemes, panicles, or axillary clusters of yellow to dark orange, cream or reddish flowers, cup shaped usually reflexed sepals, followed by colorful autumn fleshy fruits. They range from dwarf species and cultivars to large shrubs that are effective in a border, as specimen shrubs, or hedges. Site with care as branches can be hazardous. All parts may cause mild stomach upset if ingested, contact with spines may irritate skin. Were once used to make dye for clothes, leather, wood and hair.
Grow in almost any well drained soil in full sun or partial shade. Fruiting and autumn color are better in sun. Trim after flowering.
Prone to scale insects, mites, Japanese weevils, canker, dieback, fungal leaf spots, powdery mildew, root rot, verticillium wilt, rust. Many Berberis species are the alternate hosts of wheat rust, their culture is banned in Canada and parts of the USA.
B. koreana – Korean Barberry – This dense, multi stemmed, deciduous shrub from Korea grows 4-6′ feet tall and 3-5′ feet wide. It produces alternate, egg shaped, serrated edged, mid to dark green leaves, 1-3″ long, rounded at the tip, and strongly veined beneath, which can be mottled when young. Deep reddish purple autumn color persists late into the season. In mid spring it bears showy yellow flowers, 1/4″ across, are carried in pendent racemes of up to 20 blooms, followed by ovoid, glossy, red fruit, to 3/8″ long with a waxy blooms. Forms large colonies.
Zones 3-7
