Halesia carolina

(H.tetraptera) Snowdrop tree, Wild olive. A large shrub or small spreading tree to 6m (20 ft) high. White, bell-shaped flowers in spring are followed by pear-shaped, four-winged fruits, edible when green in summer with a nice pea flavour. Likes a moist acid soil and sun or part shade. Hardy to -23°C. Bare root.