Clethra Alcoceri prefers consistently moist soil, especially during its establishment phase and warmer months. Water deeply when the top 2-3 cm of soil feels dry. Avoid waterlogged conditions, which can lead to root rot.

Reduce watering frequency in cooler, dormant periods, but do not allow the soil to dry out completely.

Prune Clethra Alcoceri in late winter or early spring before new growth begins. Remove any dead, damaged, or crossing branches. Light pruning can be done after flowering to maintain shape and encourage bushier growth.

Avoid heavy pruning, as it can reduce the number of flower spikes produced.

Clethra Alcoceri can be propagated by softwood cuttings taken in late spring or early summer. Dip cuttings in rooting hormone and plant in a well-draining potting mix. Maintain high humidity and consistent moisture.

Alternatively, seeds can be sown in fall or early spring, but germination can be slow and erratic.

Repot Clethra Alcoceri every 2-3 years, or when the plant becomes root-bound. The best time to repot is in early spring, before new growth emerges.

Use a well-draining potting mix and choose a pot that is slightly larger than the current one. Ensure good drainage holes to prevent water accumulation.