Water moderately during the growing season, allowing the top inch of soil to dry out between waterings. Reduce watering significantly in winter when the plant is dormant.

Ensure good drainage to prevent waterlogging, which can lead to root rot. Overwatering is a common issue, so err on the side of caution.

Prune lightly after flowering to maintain a tidy shape and encourage bushier growth. Remove spent flower stalks to prevent self-seeding and to promote further blooms.

Hard pruning can be done in early spring before new growth emerges if the plant has become leggy or overgrown.

Propagate from semi-ripe cuttings taken in summer. Root cuttings in a well-draining compost mixture in a warm environment. Alternatively, sow seeds in spring, either indoors or directly outdoors in a sheltered spot.

Seed-sown plants may take longer to establish and flower.

Repot young plants annually in spring as needed, moving them into slightly larger containers. Mature plants can be repotted every 2-3 years or when they become root-bound. Use a peat-free, well-draining compost.

Repotting is best done before new growth starts in early spring.