This is Delonix regia, also known as Royal Poinciana, Flamboyant Flame Tree, Peacock Flower, and Gulmohar. Saint Thomas Christians of Kerala believe that when Jesus was crucified, there was a small Royal Poinciana tree nearby his cross and that he shed blood over the flowers of the tree. It is believed that this is how the flowers of Royal Poinciana got a sharp red color. This tree attracts many different butterflies from all over the place. They come running for this sweet beauty. This is a nectar plant for the Small Branded Swift butterfly, and it is a larval host plant for the Common Grass Yellow, Three-spot Grass Yellow, and Indian Nawab butterflies. USDA Hardiness Zones 10 to 11