Water regularly to keep the soil consistently moist during the growing season, but avoid waterlogging. Reduce watering in winter, allowing the soil to dry slightly between waterings.

Ensure good drainage to prevent root rot.

Prune lightly after flowering to maintain a tidy shape and encourage bushier growth. Remove spent flower stalks to prevent self-seeding, although this is not strictly necessary.

Heavy pruning is usually not required for this species.

Propagate by seeds sown in spring, or by semi-ripe cuttings taken in late summer. Seeds can be sown directly in situ or in pots. Cuttings should be rooted in a well-draining medium in a warm, humid environment.

Repot young plants annually or as needed in spring. Established plants require repotting less frequently, typically every 2-3 years.

Use a well-draining compost mix, and choose a pot only slightly larger than the current one.