Family: Papilionaceae
Common Name: Scarlet wisteria

There are about 50 species of shrubs, small trees and perennials in this genus from tropical and subtropical climates. The most commonly cultivated are the larger species with colourful flowers. The bark and leaves of some species have medicinal uses.

Species

S. drummondi is a tall shrub, to 6 m (20 ft), with long leaves and yellow flowers.

S. emerus grows 5 m (16 ft) high, with yellow flowers which are spotted in dark purple.

S. grandiflora, scarlet wisteria tree, is a much larger, but short-lived type, growing to 12 m (40 ft), producing red-pink or white flowers and fern-like leaves.

S. tripetii, Brazilian glory pea or scarlet wisteria, has pendulous clusters of vermilion flowers.

Cultivation

In climates prone to frost, grow in an intermediate to warm greenhouse or conservatory, in pots of soil-based potting compost. Provide maximum light. If necessary, lightly prune in spring to maintain a good shape. Outdoors grow in a sunny, sheltered spot with moist yet well-drained soil. Propagate in spring from seed germinated at 16°C (61°F) or from semi-ripe cuttings in summer, with basal warmth.

Climate

Zone 10 or tropical.