Hong Kong Orchid Tree

The Hong Kong orchid tree is a broad-crowned subtropical hybrid valued for large, fragrant orchid-like flowers and distinctive two-lobed leaves. It is sterile and does not form seed pods; flowering season varies with climate, ranging from late autumn through spring in strongly seasonal subtropical regions. [NParks](https://www.nparks.gov.sg/florafaunaweb/flora/2/7/2748) and [North Carolina Extension](https://plants.ces.ncsu.edu/plants/bauhinia-x-blakeana/common-name/hong-kong-orchid-tree/) describe it as an ornamental specimen for warm landscapes. ## Landscape use Use it as a flowering shade or specimen tree where there is room for its spreading crown. The semi-deciduous habit means it may shed leaves in cooler or dry periods, and its large blooms can be especially abundant where seasons are distinct. Allow generous room for the spreading crown and protect the tree from frost. Flowering season and leaf drop vary by climate. ## Siting and soil Choose full sun and a well-drained site. NParks recommends fertile, acidic soil and notes that established trees tolerate drought; North Carolina Extension advises frost protection, since cold can damage foliage and extended hard freezes can kill the tree. Its sterile flowers mean it is generally free of the large seed pods produced by related Bauhinia species. ## Maintenance Train young trees early if a single trunk or higher clearance is desired. Multi-stemmed trees can develop weak branch unions, and older drooping limbs may need selective pruning. Water regularly while establishing, then reduce supplemental watering as the root system develops; avoid waterlogged soil.