Water Colubrina alluaudii moderately when the top 2-3 cm of soil feels dry. Allow the soil to dry out slightly between waterings, as it prefers well-draining conditions and is somewhat drought-tolerant once established.

Avoid overwatering, which can lead to root rot.

Prune Colubrina alluaudii to maintain shape and remove any dead, damaged, or crossing branches.

Light pruning can be done anytime, but heavier shaping is best performed in late winter or early spring before new growth begins. This encourages bushier growth and flowering.

Propagate Colubrina alluaudii from semi-hardwood cuttings taken in late summer or early fall. Dip the cuttings in rooting hormone and plant them in a well-draining potting mix.

Keep the cuttings moist and warm, ideally with bottom heat, to encourage root development.

Repot Colubrina alluaudii every 2-3 years or when it becomes root-bound. Use a well-draining potting mix, such as a cactus or succulent blend. Choose a pot that is only slightly larger than the current one.

Repotting is best done in the spring before the active growing season begins.