Environmental Requirements
The Royal Poinciana requires a tropical or near-tropical climate, but can tolerate drought and salty conditions. It is very widely grown in the Caribbean, Africa, Northern Australia (as far south as South east Queensland, although in sheltered micro climates it can be successfully grown in some areas of Sydney), Hong Kong, the Canary Islands, Mexico, Cyprus, Thailand, Philippines, Taiwan and southern China, and is also the city tree of Tainan, Taiwan and Xiamen, Fujian Province, People's Republic of China. National Cheng Kung University, a university located in Tainan, put Royal Poinciana on its emblem. It also grows throughout southern Brazil, with ornamental trees in Rio Grande do Sul (Canoas and Porto Alegre).
Read more about this topic: Delonix Regia