Star Fruit Seedlings

The carambola is a tropical and subtropical fruit that can be grown at elevations up to 1,200 metres (4,000 feet). It prefers full sun exposure, but requires enough humidity and annual rainfall of at least 1,800 mm (70 in). It does not have a soil type preference, but will thrive in loam and requires good drainage. Moderate irrigation supports its growth during dry seasons. Heavy rains may inhibit fruit production.

Carambola trees are planted at least 6 m (20 ft) from each other and typically are fertilized three times a year. The tree grows rapidly and typically produces fruit at four or five years of age. The large amount of rain during spring actually reduces the amount of fruit, but, in ideal conditions, carambola can produce from 90 to 180 kilograms (200 to 400 pounds) of fruit a year. The carambola tree flowers throughout the year, with main fruiting seasons from April to June and October to December in Malaysia, for example, but fruiting also occurs at other times in some other locales, such as South Florida.

Growth and leaf responses of container-grown ‘Arkin’ carambola (Averrhoa carambola L.) trees to long-term exposure of 25%, 50%, or 100% sunlight showed that shading increased rachis length and leaflet area, decreased leaflet thickness, and produced more horizontal branch orientation.

Major pests are carambola fruit flies, fruit moths, ants, and birds. Crops are also susceptible to frost.

Star fruit has a mildly sweet taste and can be eaten in its natural form or prepared in a smoothie, jelly, or spread. This fruit can also be incorporated into savory dishes, like salads or sauces.

Although there is no specific amount recommended for star fruit consumption, the minimum daily fruit recommendation is between 2 and 3 servings, which corresponds to between 160 g and 240 g per day.