(D = deciduous leaf losing and E = evergreen)
There are at least 50 attractive barberries in cultivation, but many are for the specialist who wants a very wide range of these thorny plants, although most of them are easy to cultivate in practically any. Most of them flower in late May. Plant the deciduous species from October to March and the evergreen from October to April. Among the most popular are:
aggregatei (deciduous leaf-losing), 4 to 5 ft., yellow in July are followed by large clusters of red berries. The leaves turn a good colour in autumn.
B. calliantha (evergreen), 3 to 4 ft., one of the best plants, has small,-like leaves which are white underneath, reddish stems, and yellow flowers followed by blue-black fruits covered with a grape-like bloom.
B. darwinii (evergreen), 6 to 8 ft., one of the most popular kinds, has prickly, holly-like leaves, orange flowers and bluish berries.
B. gagnepainii (evergreen), 6 to 7 ft., makes a dense, upright-growing shrub, with long, narrow leaves, yellow flowers and blue-black fruits.
B. irwinii (E=evergreen), 3 ft., a more compact plant, with leaves, flowers and berries rather like those of B. darwinii.
B. linearifolia (evergreen), 3 to 4 ft., bright orange flowers in spring.
B. lologensis (evergreen) , 8 ft., the hybrid between B. irwinii and B. linearifolia, a fine plant with apricot flowers and prickly leaves.
B. stenophylla (evergreen), 8 ft. or more, one of the larger barberries, with large leaves and yellow flowers on the arching branches in spring.
B. thunbergii atropurpurea (deciduous leaf-losing), 4 ft., the best form of B. thungerbii, with reddish-purple leaves and yellow flowers.
B. wilsoniae (evergreen), 2 ft., a dwarf kind with yellow flowers and red fruits. The leaves turn brilliant colours in autumn.