Orchid Trees are mostly tropical and subtropical trees and shrubs, with species native to all of the inhabited continents. There are several widely adapted, moderately drought tolerant species that are popular in tropical regions. A member of the legume family, Fabaceae, they can fix nitrogen, allowing them to grow in poor soils. Unfortunately, most of the hardy, temperate species are shrubs.
Orchid trees have unique looking leaves, separated into two lobes that somewhat resemble a butterfly's wings. Most species have attractive flowers that resemble orchids.
The only species of tree from this genus I have seen locally is B. variegata. It seems hardy enough to succeed here without major issues but could be at risk of damage in exceptionally cold years. Reportedly, there is a Hong Kong Orchid tree, B. x blakeana in Davis, but I have not confirmed its identity. This tree has suffered serious frost damage in past years but always recovers.
Orchid trees have unique looking leaves, separated into two lobes that somewhat resemble a butterfly's wings. Most species have attractive flowers that resemble orchids.
The only species of tree from this genus I have seen locally is B. variegata. It seems hardy enough to succeed here without major issues but could be at risk of damage in exceptionally cold years. Reportedly, there is a Hong Kong Orchid tree, B. x blakeana in Davis, but I have not confirmed its identity. This tree has suffered serious frost damage in past years but always recovers.