Water Stachys germanica regularly during the growing season, allowing the soil to dry slightly between waterings. Reduce watering significantly in winter.

Ensure good drainage to prevent root rot, especially in containers. Overwatering can lead to fungal diseases.

Prune Stachys germanica in late spring or early summer to encourage bushier growth and more flowers. Remove spent flower stalks to prevent self-seeding and maintain tidiness.

Cut back established plants in late autumn or early spring to remove dead or damaged foliage.

Stachys germanica can be propagated by softwood cuttings taken in late spring or semi-hardwood cuttings in mid-summer.

It also readily self-seeds, and new plants can be obtained by division of established clumps in spring or autumn. Sow seeds in spring.

Repot Stachys germanica every 2-3 years, or when the plant becomes root-bound. Use a well-draining potting mix, such as a loam-based compost with added grit or perlite.

Repotting is best done in early spring before new growth begins.