Kunzea affinis prefers consistently moist soil but dislikes waterlogging. Water thoroughly when the top 2-3 cm of soil feels dry. Reduce watering slightly during winter dormancy.

Ensure good drainage to prevent root rot, especially in potted specimens.

Prune after flowering to maintain shape and encourage denser growth. Remove any dead, damaged, or crossing branches. Light shaping can be done at any time. Avoid heavy pruning, as it may stress the plant.

Propagate from semi-hardwood cuttings taken in late summer or early autumn. Use a rooting hormone to improve success rates.

Plant cuttings in a well-draining, sterile medium and keep them in a warm, humid environment until established.

Repot young plants annually or every two years in spring. Mature plants can be repotted less frequently. Use a well-draining potting mix, such as a blend of sandy loam and compost.

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