Cupania glabra prefers consistently moist soil but dislikes waterlogged conditions. Water thoroughly when the top 2-3 cm of soil feels dry. Reduce watering slightly during cooler, dormant periods to prevent root rot.

Ensure good drainage in pots and garden beds.

Prune Cupania glabra to maintain its desired shape and size, and to remove any dead, damaged, or crossing branches. This can be done in late winter or early spring before new growth begins.

Light pruning can also encourage bushier growth.

Cupania glabra can be propagated from seeds, which should be sown fresh. It can also be propagated from semi-hardwood cuttings taken in summer.

Cuttings should be treated with rooting hormone and placed in a well-draining medium in a warm, humid environment.

Repot young Cupania glabra plants every 2-3 years, or when they become root-bound. Use a well-draining potting mix. Repot mature plants less frequently, perhaps every 3-5 years, or when drainage becomes an issue.

Choose a pot that is only slightly larger than the current one.