Pollia japonica prefers consistently moist soil. Water thoroughly when the top centimeter of soil feels dry to the touch. Avoid waterlogged conditions, which can lead to root rot.

Reduce watering slightly during the dormant winter months but do not allow the soil to dry out completely.

Prune Pollia japonica to maintain its shape and encourage bushier growth. Remove any dead, damaged, or leggy stems at any time.

Light pruning can be done in spring or after flowering to remove spent flower stalks and improve appearance. Heavy pruning is usually not necessary.

Propagate Pollia japonica through division or stem cuttings. Divisions can be made in early spring as new growth emerges. Stem cuttings, taken in late spring or early summer, can be rooted in moist potting mix or water.

Ensure cuttings have at least one leaf node.

Repot Pollia japonica every 2-3 years, or when it becomes root-bound. Use a well-draining potting mix. Spring is the ideal time to repot, just as the plant begins its active growth phase.

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