Portia tree likes sun and reaches 20-25 feet in height. A similar plant is the mahoe . It is big and rambling and can cover an acre or more. It is shallow and blows over easily. The flowers last only a day, then fall off.
Mahoe is salt-tolerant and can tolerate beach conditions.
Q. My f rangipani has yellow leaves. I gave it plenty of fertilizer. Your frangipani was probably over- fertilized which caused leaf yellowing and should recover after a period of months. You might run the hose around the tree for an hour or so to flush the excess fertilizer past the roots. Frangipani do not need much water or fertilizer.