Water Coprosma brassii regularly during the growing season, allowing the top 2-3 cm of soil to dry out between waterings. Reduce watering significantly in winter, providing just enough to prevent complete desiccation.

Avoid waterlogged conditions, which can lead to root rot. Ensure good drainage.

Prune Coprosma brassii in late spring or early summer to maintain its shape and encourage bushier growth. Remove any dead, damaged, or crossing branches. Light pruning can be done at any time to shape the plant.

Avoid heavy pruning, as it can stimulate less vigorous new growth.

Propagate Coprosma brassii from semi-hardwood cuttings taken in late summer or early autumn. Select healthy shoots, remove lower leaves, and dip the cut end in rooting hormone.

Insert cuttings into a well-draining potting mix and keep them moist and warm. Rooting typically occurs within several weeks.

Repot Coprosma brassii every 2-3 years, or when it becomes root-bound. The best time to repot is in early spring before new growth begins.

Choose a pot that is slightly larger than the current one and use a well-draining potting mix. Gently loosen any circling roots before replanting.