In Vietnam, there are two kinds of custard apple: firm and soft. Both varieties can have various shapes, for example they can be round or oval. When a custard apples is ripe, it is easy to peel. The peel is thick, green, and covered with white or green pollen. The pulp is white or light yellow and contains many black seeds.
In the south, custard apples ripen in July, but not all at the same time. Firm custard apples are densely grown in the south, mainly in Ninh Thuan and Vung Tau. Xiem custard apples are oval or heart shaped. Their peel is green with thorns, which turn black when the fruit is ripe. The fruits are generally big and can reach 1.5 kg. The pulp is white, hard, and a bit sour.
Custard apple trees deliver fruit after three or four years of growth. A tree produces on average from 50 to 100 fruits per year. The fruits ripens on the tree and then cracks, especially during the rainy season.
WATER-APPLE
The waterapple is native to the South-East Asia. The coloring of the fruit varies from pale green to ruby red. The waterapple is bell-shaped and is about 5 cm in diameter. The center of the fruit is hollow and is filled with woolly fibers and brown seeds. The waterapple has a slightly acid flavor and can be very sour. Vietnamese often use the waterapple as offerings at the altar because of their vibrant colors
STAR-FRUIT
The starfruit is a native fruit of South-East Asia . The fruit has a distinct taste and is often used in cooking. When sliced cross-wise, the pieces look like five distinct-angled stars. Consequently, the fruit is a must in certain Vietnamese dishes as garnishes. The fruit can be eaten raw or cooked.
Starfruits grow in cluster of three of four. The sizes vary from 5cm to 17cm. The fruit is green when young, turning yellow to almost orange and slightly translucent when ripe. Starfruit's skin is quite tough while the flesh is soft, juicy, sweet and sour tasting.
In Vietnam, there are two kinds of custard apple: firm and soft. Both varieties can have various shapes, for example they can be round or oval. When a custard apples is ripe, it is easy to peel. The peel is thick, green, and covered with white or green pollen. The pulp is white or light yellow and contains many black seeds. 
The waterapple is native to the South-East Asia. The coloring of the fruit varies from pale green to ruby red. The waterapple is bell-shaped and is about 5 cm in diameter. The center of the fruit is hollow and is filled with woolly fibers and brown seeds. The waterapple has a slightly acid flavor and can be very sour. Vietnamese often use the waterapple as offerings at the altar because of their vibrant colors 
The starfruit is a native fruit of South-East Asia . The fruit has a distinct taste and is often used in cooking. When sliced cross-wise, the pieces look like five distinct-angled stars. Consequently, the fruit is a must in certain Vietnamese dishes as garnishes. The fruit can be eaten raw or cooked. 
