Water regularly during its establishment phase, especially in its first year. Once established, Diplolaena grandiflora is drought-tolerant.

Allow the soil to dry out between waterings, and water deeply to encourage strong root growth. Avoid waterlogged conditions, which can lead to root rot.

Prune after flowering to maintain shape and encourage bushier growth. Remove any dead, damaged, or crossing branches. Light pruning can also be done to control size and remove spent flower heads.

Avoid heavy pruning, as it can reduce future blooms.

Propagation is typically done by semi-hardwood cuttings taken in late summer or early autumn. Use a rooting hormone to encourage root formation.

Cuttings should be placed in a well-draining potting mix and kept in a warm, humid environment until established.

Young plants may benefit from repotting every 1-2 years into slightly larger containers. Established plants are generally content in their pots and do not require frequent repotting.

Choose a well-draining potting mix and repot in spring before the active growing season.