The Kowhai flower is national flower of New Zealand. Kowhai - 3 Genuses: Sophora tetraptera, Sophora microphylla, Sophora prostrata.
The Kowhai is a spectacular tree in spring when, almost leafless, it bursts into bright yellow flower.
Cultivation: Plant in a well-drained, reasonable soil. Wet feet will mean a disappointing or dead plant. A tangled juvenile plant it will grow to 5-7m. Water if very dry, especially when young.
Propagation: Seed or cuttings. Their seeds are resistant to saltwater, and are believed to have floated around the southern oceans, with limited evolution taking place after establishing in new lands.