Family: Sterculiaceae
Common Name: Indian Almond Tree

Grown as ornamental and shade trees in sub-tropical and tropical regions, the main disadvantage of Sterculia is the offensive odor released by leaves of some species. Most species are fast growing and deciduous, with colourful calyces taking the place of flower petals.

Species

S. foetida, Indian almond, originating from India and warmer parts of Asia, grows to 20 m (65 ft) tall. The leaves are long and divided, and the calyces are purple, red and yellow. The dark red seed pods grow to about 8 cm (3 in) long. The leaves of this species give off the characteristic, unpleasant odor.

S. quadrifida, koralba or peanut tree, is a medium-sized, rainforest tree with a rounded crown. The small, entire leaves are dull green, while the 8-10 cm (3-4 in) long, red seed pods are woody, opening on one side to reveal the edible seeds.

S. rubiginosa, from India and Indonesia, is a shrub or tree growing to 6 m (20 ft) high, with long leaves, white on the undersides, and drooping sprays of red calyces. The seed pods grow to 8 cm (3 in) in length.

S. villosa, from India, is characterized by its white bark. It has large, velvety, lobed leaves and the silky calyces are pink inside. These are borne in sprays at the branch tips.

Cultivation

In climates which are prone to frosts, grow in a warm to intermediate green-house or conservatory in pots of rich, soil-based potting compost. Outdoors grow in a warm sunny spot (must be frost free) with rich, moist yet well-drained soil. Propagate from ripe seeds germinated in warmth, or from semi-ripe cuttings with bottom heat.

Climate

Zone 10 or tropical.