Royal Poinciana (Delonix regia) is a tree native to Madagascar, but it grows in many tropical cities all over the world. It is only hardy to 25 F and can be grown through U.S. Department of Agriculture (USDA) zones 10 to 12, and in zone 9b with some protection. Royal Poinciana grows to about 40-feet tall with a 60-feet spread making it a great shade tree. Planting Royal Poinciana in your yard will give you a great show of bright red flowers for nearly a month every summer.
Choose a place in your yard to plant the Royal Poinciana. They need full sun, but can handle clay, sandy and loamy soil, either acidic or alkaline, as long as it is well drained.
Dig a hole for the Royal Poinciana. Dig a hole as deep as the root ball and three times as wide.
Place the Royal Poinciana inside the hole. Fill the hole halfway full of soil and then fill the hole full of water. Allow the water to soak into the soil. Finish filling the hole with soil and pat down firmly.
Water the Royal Poinciana until the soil is moist.