Water regularly, especially during dry spells, to keep the soil consistently moist but not waterlogged. Allow the top few centimeters of soil to dry out slightly between waterings.

Good drainage is essential to prevent root rot. Reduce watering in cooler months.

Deadhead spent flowers regularly to encourage more blooms and prevent self-seeding. In late autumn or early spring, cut back the old stems to about 5-10 cm above the ground to promote fresh, healthy new growth.

Easily propagated from seed sown in spring, either directly outdoors or indoors a few weeks prior. Division of established clumps in spring is also a simple method. Sow seeds thinly and keep moist until germination.

Young plants may need repotting annually into slightly larger containers until they reach their desired size. Mature plants in the ground generally do not require repotting, but dividing overgrown clumps every 2-3 years is beneficial.