Water regularly during the growing season, especially in dry periods. Allow the soil to dry slightly between waterings. Reduce watering in fall as the plant enters dormancy.

Ensure good drainage to prevent waterlogged roots, which can lead to root rot.

Cut back stems in late fall or early spring to about 10-15 cm from the ground. This encourages bushier growth and prevents the plant from becoming too leggy.

Remove spent flowers throughout the blooming season to prolong flowering and maintain a tidy appearance.

Propagate by division in early spring. Carefully dig up established clumps and divide them into smaller sections, ensuring each section has roots and shoots. Replant divisions immediately into well-prepared soil.

Seeds can also be sown in autumn or stratified indoors.

Established plants generally do not require frequent repotting. If the plant becomes overcrowded or the soil is exhausted, divide and repot in early spring.

This process revitalizes the plant and can help manage its size and vigor in garden settings.