Family: Caesalpiniaceae
Common Name: Carob, St John's Bread, Locust Tree

This genus of only one species comes from the Mediterranean where it grows up to 15 m (50 ft) in height. The seed pods contain a sweet, edible pulp, known as carob, which has become popular as a chocolate substitute in recent years. The pods have also been used as emergency animal fodder. The edible but very hard seeds are reputed to have been the carat weight of gem traders.

Species

C. siliqua has pinnate leaves, composed of rounded, shiny leaflets, and sprays of red flowers, followed by flattened, leathery seed pods to 25 cm (10 in). It grows 10-12 m (33-40 ft) high under general cultivation.

Cultivation

The carob will grow on any well-drained soil, but likes the same moderate climate as the citrus tree. Propagate from seed soaked overnight before sowing 2 cm (¾ in) deep in light soil. Harden off the seedlings and transplant in spring. Cuttings can be taken in autumn.

Climate

Zone 9.