'Sri Kembangan' Starfruit
Averrhoa carambola
“A border starfruit — a Thai carambola cultivar confirmed by Matt.”
Background
A real, recognized carambola cultivar from Southeast Asia, though sources differ on the exact origin: the California Rare Fruit Growers Fruit Facts lists it as originated in Thailand, while UF/IFAS lists its origin as Malaysia. It appeared in the University of Puerto Rico's nine-cultivar yield trial with above-average fruit length and soluble solids. It is one of the standard sweet Malaysian/Thai types in the U.S. trade. Background beyond that is thin: no verified breeding record was found.
Distinguishing traits
Elongated, pointed fruit about 6 inches long, bright yellow-orange skin and flesh. Juicy, firm flesh with few seeds; flavor described as rich and sweet — excellent dessert quality. Self-pollinating; tree grows 15-18 ft at a medium rate.
Desert care — zone 9b
- Chill hours
- None (tropical evergreen)
- Cold hardiness
- Hardy to about 30°F per one nursery (listed for USDA zones 9-11); mature trees can briefly handle 27°F, young trees killed at 32°F. Protect during Queen Creek freeze events.
- Heat tolerance
- Tolerates extreme heat with steady water; vulnerable to hot, dry winds like all carambolas.
- Water
- Consistent moisture required; keep evenly moist during establishment and fruiting.
- Soil
- Excellent drainage, slightly acidic (pH 5.5-6.0); amend alkaline desert soil and mulch heavily.
- Sun exposure
- Full sun, with afternoon shade advised in the hottest desert months.
Where to buy
- Utopia Trees