This is Annona squamosa, also known as Sugar Apple, and Sweetsop. This tree produces a popular tropical fruit called sugar-apple. This tree can grow to about 12 feet high and likes to live in sun or partial shade. It blossoms from the middle of the Spring until early Summer. This plant is somewhat drought tolerant and cannot survive a freeze. Annona squamosa is a larval host plant for the Tailed jay Swallowtail butterfly. USDA Hardiness Zones 10 to 11