Keep the soil consistently moist, especially during the growing season. Water deeply when the top 2-3 cm of soil feels dry. Avoid waterlogged conditions, which can lead to root rot.

Reduce watering in late autumn and winter when the plant is dormant.

After flowering, deadhead spent flower stalks to encourage reblooming and prevent self-seeding if desired. In late autumn or early spring, cut back the dead foliage to about 5-10 cm above the ground.

This tidies the plant and prepares it for new growth.

Easily propagated from seed sown in autumn or early spring. Division of established clumps in early spring or autumn is also effective.

Ensure new divisions have healthy roots and at least a few shoots for successful establishment.

Established plants generally do not require frequent repotting and prefer to be undisturbed. If repotting is necessary, typically every 3-5 years, do so in early spring or autumn.

Choose a slightly larger pot with good drainage and fresh, fertile potting mix.