Family: Capparaceae
Common Name: Caper Bush

These evergreen shrubs and trees are found in most tropical, subtropical and dry inland areas. There are about 250 species in this genus. They produce yellow or white flowers, ovate leaves and edible fruits. Only one species, C. spinosa, is commonly grown.

Species

C. mitchellii, tree caper, native orange or native pomegranate, is a thorny species native to inland eastern Australia and useful as a shade tree in hot, dry areas. It grows 3-9 m (10-30 ft) tall, with large, cream flowers and hairy berries which are 5 cm (2 in) across.

C. spinosa, caper bush, zone 9, is a tangled, thorny shrub from the dry, rocky areas of the Mediterranean. Not particularly attractive, it is grown for its flower buds which have been pickled and used as condiments for many centuries. It grows from about 90 cm (36 in) to 1.5 m (5 ft) in height and produces large white flowers with long stamens. Var. inermis is thornless and has white flowers flushed with red.

Cultivation

This plant needs a frost-free situation and good drainage. Propagate from semi-hardwood cuttings in late summer.

Climate

Zone 10 for most.