Water deeply but infrequently once established. Allow the soil to dry out between waterings. Overwatering can lead to root rot, especially in poorly draining soils.

Reduce watering in winter to prevent frost damage and over-saturation.

After flowering, deadhead spent blooms to encourage reblooming and maintain a tidy appearance. In late fall or early spring, cut back the dead foliage to about 10-15 cm above the ground to promote new growth and prevent fungal diseases.

Easily propagated from seed sown in autumn or early spring. Seeds may benefit from a period of cold stratification.

Stem cuttings can also be taken in late spring or early summer and rooted in well-draining soil or a seed-starting mix.

This species generally prefers to be slightly root-bound and does not require frequent repotting. If container-grown and the plant becomes overcrowded, repot in early spring into a slightly larger pot with fresh, well-draining soil.