Langsat: The Translucent Southeast Asian Cluster Fruit
Langsat is a small translucent yellow fruit from a Southeast Asian tree. The story of this Malay forest staple and how to grow it.
Langsat (Lansium parasiticum), also called duku or longkong depending on the variety, is a small translucent yellow fruit that grows in tight clusters on a tropical Southeast Asian tree. The flesh is sweet-tart with a fragrance reminiscent of grapefruit. Native to the Malay Archipelago and cultivated for centuries.
Origin and history
Native to peninsular Malaysia, Indonesia, and the southern Philippines. Cultivation goes back at least 1,000 years across maritime Southeast Asia. Spread regionally via Buddhist and Islamic trade routes but never became a major export crop.
Where it grows today
Indonesia, Malaysia, Thailand, and the Philippines are the main producers. Most fruit is consumed regionally.
How to grow
True tropical only โ USDA Zones 11-12. Tall slow-growing tree (10-15m). Prefers partial shade when young. First fruit in 8-12 years from seed; 5-7 from grafted.
Bottom line
A regional Southeast Asian treasure barely known outside its native range. Translucent fruit, refreshing flavor, slow but generous tree.