Water regularly to keep the soil consistently moist, especially during dry periods. Allow the top few centimeters of soil to dry out between waterings. Avoid waterlogging, as this can lead to root rot.

Reduce watering in winter when the plant is dormant.

Prune in late spring or early summer to encourage bushier growth and prevent the plant from becoming leggy. Deadhead spent flowers to prevent self-seeding.

For rejuvenation, cut back established plants hard in early spring to stimulate new growth.

Propagate by division of clumps in spring or autumn. Stem cuttings can also be taken in late spring or early summer and rooted in moist soil or water. Seeds can be sown in spring, though plants may not come true to type.

Repot container-grown plants every 2-3 years in spring, or when they become root-bound. Use a well-draining potting mix. Choose a pot only slightly larger than the current one.

This helps prevent overwatering and encourages healthy root development.