Also known as bullock's heart, the custard apple is one of the deciduous species of cherimoyas and grows to a height of about 8 - 10 m. It is susceptible to wind damage, and will not grow on poorly drained soils.
The fruit is yellow in colour, becoming red or brown. The flesh is yellow - white and more solid and granular than some of the other annonaceous fruits. Otherwise similar to the cherimoya.
Nutritional composition of the custard apple per 100 grams of edible portion is: Water -71.5%, Energy - 101 calories, Carbohydrate - 25.2 g, Fat - 0.6 g, Protein - 1.7 g, Ash - 1.0 g, Calcium - 27 mg, Iron - 0.8 mg, Phosphorous - 20 mg, Vitamin A - trace, Thiamin - 0.08 mg, Riboflavin - 0.10 mg, Niacin - 0.5 mg, Ascorbic acid - 22 mgs.