Water regularly during the growing season, allowing the soil to dry slightly between waterings. Reduce watering in autumn and winter to prevent waterlogging, especially if grown in containers.

Ensure good drainage to avoid root rot.

Prune lightly after flowering to maintain shape and remove any dead, damaged, or crossing branches. Heavy pruning is generally not recommended and can affect flowering. Minimal intervention is best for this hardy shrub.

Propagate from seeds sown in autumn or early spring. Alternatively, take semi-hardwood cuttings in summer and root them in a well-draining medium. Seed germination can be slow and may require stratification.

Repot young plants every 2-3 years in spring before new growth begins. Mature plants can be left in their pots for longer periods, as they tolerate being slightly pot-bound. Use a free-draining potting mix.