12 - 15m x 12 - 15m
Usually single trunked with a broad dome of curving branches and a twiggy canopy.
Opposite, bipinnate, (300 - 400mm long) leaflets lanceolate / elliptic, (10 - 15mm x 3 - 4mm) bright green, turning yellow in late winter and early spring, before falling in mid spring. The leaves reappear in early summer. A variegated foliage form with light green margins is known but not common.
Campanulate with five lobes at the mouth, (40 - 50mm long) hyacinth blue, faintly perfumed, in 200mm long terminal clusters (panicles). Main flowering mid spring to early summer.
A brown disc shaped follicle, 50 - 60mm across.
Bark / Trunk:
Rough pale grey bark, with many small fissures.
Vigour / Longevity:
Vigorous, long lived
Full sun, with wind protection.
Mild drought tolerance, tolerates neglect once established. Frost tender when young then hardy to -3°C.
Soil / Drainage:
Prefers fertile, well drained, moist soils, hardy to most soils if drainage is at least moderate.
Train to a single leader, if a branch needs to be removed, it should be cut back to a side branch or removed completely. If any upright regrowth occurs from the cut area, it should be removed or it will develop into an unsightly upright sucker, ruining th
Water during very dry periods, short periods of drought can improve flowering.
Fertilise with a complete fertiliser after flowering till established.
Pests / Diseases:
Flowering shade tree, street tree, tropical effect tree, colour contrast tree, has been used for flower colour contrast with Brachychiton acerifolius, Calodendrum capense and Grevillea robusta. This tree has a vigorous root system, do not plant near pipes, paths, etc.
© Text reproduced here with the kind permission of Tony Wilson and Barck Books.