We are offering custard apple. The custard-apple, also called bullock's heart or bull's heart, is the fruit of the tree annona reticulata. This tree is a small deciduous or semi-evergreen tree sometimes reaching 10 metres (33 ft) tall and a native of the tropical new world that prefers low elevations, and a warm, humid climate. It also occurs as feral populations in many parts of the world including southeast asia, taiwan, india, australia, and africa.