Water consistently, keeping the soil moist but not waterlogged, especially during the growing season. Reduce watering in winter when the plant is dormant.

Allow the top layer of soil to dry slightly between waterings to prevent root rot.

Prune to maintain shape and remove dead or damaged stems. Light pruning can be done after flowering to encourage a bushier habit. Avoid heavy pruning, as this plant typically forms a more natural, upright growth.

Remove spent flower stalks to prevent unwanted self-seeding.

Propagate by division in spring or by seed. Seeds can be sown in autumn or early spring. Stratification may improve germination for seeds sown in spring.

Division is best done when the plant is actively growing, ensuring each division has sufficient roots and shoots.

Repot young plants annually or biennially in spring to provide fresh soil and more space for root growth. Mature plants can be repotted less frequently, only when root-bound.

Use a well-draining potting mix, and select a pot slightly larger than the current one.