Aquilaria crassna prefers consistently moist soil but dislikes waterlogged conditions. Water deeply when the top 2-3 cm of soil feels dry to the touch. Reduce watering frequency during cooler months to prevent root rot.

Ensure good drainage to avoid fungal issues, especially in humid climates.

Pruning is generally minimal for Aquilaria crassna, primarily focused on removing dead, damaged, or crossing branches. This promotes an open canopy and good air circulation.

Light pruning can be done to shape the tree if necessary, but avoid heavy cuts. The best time for pruning is late spring or early summer.

Propagation is typically done through cuttings or grafting, though it can be challenging.

Softwood cuttings taken in spring or semi-hardwood cuttings in summer can be rooted under humid conditions with the aid of rooting hormones.

Grafting is often preferred for reliably establishing desirable traits and faster growth.

Young Aquilaria crassna plants benefit from repotting every 1-2 years to refresh the soil and provide more space for root growth. Mature trees can be repotted less frequently, every 3-5 years.

Use a well-draining potting mix and ensure the new pot is only slightly larger than the current one.