Water regularly, keeping the soil consistently moist but not waterlogged, especially during warmer months. Allow the top centimeter of soil to dry out slightly between waterings.

Reduce watering in winter to prevent root rot.

Deadhead spent flowers regularly to encourage more blooms and maintain a tidy appearance. After flowering, you can cut back the plant by about half to promote a denser habit and potentially a second flush of flowers.

Propagate from fresh seeds sown in autumn or early spring in a cool greenhouse. Alternatively, take basal cuttings in late spring or early summer. Seeds and cuttings root best in well-draining compost.

Repot seedlings or divisions in spring as needed, typically every two years. Use a well-draining potting mix. Ensure the new pot offers adequate space for root growth.

Handle young plants gently to avoid damaging delicate roots.