Lophomyrtus × ralphii prefers consistently moist soil, but avoid waterlogging. Water thoroughly when the top 2-3 cm of soil feels dry. Reduce watering slightly during winter months.

Ensure good drainage to prevent root rot, especially in containers.

Prune Lophomyrtus × ralphii in early spring to shape the plant and remove any dead, damaged, or crossing branches.

Light trimming can be done throughout the growing season to maintain its desired form and encourage bushier growth. Avoid heavy pruning.

Lophomyrtus × ralphii can be propagated from semi-hardwood cuttings taken in late summer or early autumn. Dip the cuttings in rooting hormone and plant them in a well-draining potting mix.

Keep them consistently moist and in a warm, humid environment.

Repot Lophomyrtus × ralphii every 2-3 years, or when it becomes root-bound. Use a well-draining potting mix. Spring is the ideal time for repotting.

Choose a pot that is only slightly larger than the current one to avoid overwatering issues.