Water consistently, especially during dry periods, ensuring the soil dries slightly between waterings. Avoid waterlogging, which can lead to root rot.

Reduce watering in winter when the plant is dormant to prevent over-saturation and potential disease issues.

Prune in late winter or early spring to shape the plant and remove any dead or damaged stems. Deadhead spent flowers throughout the blooming season to encourage more blooms. Hard pruning can rejuvenate older plants.

Propagate by semi-hardwood cuttings taken in summer. Insert cuttings into a well-draining potting mix and keep them moist. Rooting can take several weeks.

Alternatively, sow seeds in spring, although this is less common for established cultivars.

Repot young plants annually in spring. Mature plants can be repotted every 2-3 years or when they become root-bound. Use a well-draining potting compost and a pot slightly larger than the previous one.