Other specimens have survived on the Lower Keys in pits prepared with non-alkaline soil. There have been attempts to maintain langsats at the University of Florida's Agricultural Research and Education Center in Homestead, but the trees have succumbed either to the limestone terrain or low temperatures. There are desirable types in both groups. Climate The langsat is ultra-tropical. It needs a humid atmosphere, plenty of moisture and will not tolerate long dry seasons.
Some shade is beneficial especially during the early years.
The tree does best on deep, rich, well-drained, sandy loam or other soils that are slightly acid to neutral and high in organic matter. It is inclined to do poorly on clay that dries and cracks during rainless periods, and is not at all adapted to alkaline soils. It will not endure even a few days of water-logging. Propagation Langsats are commonly grown from seeds which must be planted within 1 or 2 days after removal from the fruit. Seedlings will bear in 12 to 20 years.