Java plum prefers consistently moist soil, especially during its establishment and fruiting phases. Water deeply when the top 2-3 cm of soil feels dry.

Reduce watering slightly during dormancy but avoid letting the soil dry out completely. Proper drainage is crucial to prevent root rot.

Prune Java plum to shape the tree, remove dead or diseased branches, and improve air circulation. Heavy pruning is best done in late winter or early spring before new growth begins.

Lightly trim to maintain size and form throughout the growing season. Remove any crossing or rubbing branches.

Java plum can be propagated from seeds, which require scarification or stratification for germination. Softwood or semi-hardwood cuttings can also be taken in spring or summer and treated with rooting hormone.

Grafting is another method for achieving desirable fruit characteristics.

Young Java plum trees may need repotting every 2-3 years to provide more space for root growth. Use a well-draining potting mix. Repot in early spring before the growing season starts.

For established trees, root pruning can be done during repotting to manage size and encourage finer root development.