Calophyllum apetalum prefers consistently moist soil but dislikes waterlogged conditions. Water thoroughly when the top 2-3 cm of soil feels dry to the touch.

Reduce watering slightly during cooler, less active growth periods to prevent root rot. Ensure good drainage to avoid issues.

Prune to shape the tree and remove any dead, diseased, or crossing branches. The best time for major pruning is typically late winter or early spring before new growth begins.

Light pruning can be done anytime to maintain form and remove errant shoots.

Calophyllum apetalum can be propagated from seeds, which require stratification or soaking before sowing. It can also be propagated through stem cuttings, ideally semi-hardwood cuttings taken in summer.

Successful propagation often depends on maintaining high humidity and consistent warmth.

Young trees may require repotting every 1-2 years to refresh soil and provide more space for root growth. Use a well-draining potting mix.

Repot when the plant is root-bound, typically in early spring before the onset of vigorous growth. Mature trees rarely need repotting.