Strombosia javanica prefers consistently moist soil, especially during its active growth period. Water thoroughly when the top 2-3 cm of soil feels dry to the touch.

Reduce watering in cooler months to prevent waterlogging, but avoid letting the soil dry out completely. Good drainage is essential.

Pruning Strombosia javanica is primarily for shaping and removing dead or crossing branches. Light pruning can be done anytime to maintain desired form.

For more significant shaping, prune in late winter or early spring before new growth begins. Use clean, sharp tools.

Propagation is typically achieved through seeds or stem cuttings. Seeds may require stratification. Cuttings should be taken from semi-hardwood in summer.

Ensure cuttings are treated with rooting hormone and placed in a well-draining medium in a warm, humid environment. Patience is key.

Repot young Strombosia javanica plants every 1-2 years in spring. Mature plants can be repotted less frequently, every 3-4 years. Use a well-draining potting mix.

Choose a pot that is only slightly larger than the current one to avoid overwatering issues.