Water Plagianthus regius regularly, ensuring the soil remains consistently moist but not waterlogged. Reduce watering during winter months when the plant is dormant.

Overwatering can lead to root rot, so check soil moisture before watering again. Aim for moist, not soggy, conditions.

Prune Plagianthus regius in late winter or early spring before new growth emerges to shape the plant and remove any dead, damaged, or crossing branches.

Light pruning can be done after flowering to maintain its form and encourage bushier growth. Remove suckers that emerge from the base.

Propagate Plagianthus regius from semi-hardwood cuttings taken in summer. Dip the cuttings in rooting hormone and plant them in a well-draining potting mix.

Keep the cuttings moist and in a warm, humid environment until they root. Alternatively, seeds can be sown in spring.

Repot Plagianthus regius every 2-3 years, or when it becomes root-bound, typically in early spring before new growth starts. Use a larger pot with fresh, well-draining potting soil.

Gently loosen any circling roots before replanting. Water thoroughly after repotting.