Water Phlomis russeliana moderately during the growing season, allowing the soil to dry out slightly between waterings.

Reduce watering significantly in autumn and winter, as the plant requires much less moisture when dormant. Avoid waterlogging, which can lead to root rot. Ensure good drainage.

Prune Phlomis russeliana in late spring or early summer after flowering to maintain shape and encourage bushier growth. Deadhead spent flower stalks to improve appearance.

Hard pruning can be done in early spring to remove any winter damage and encourage new shoots from the base.

Propagate Phlomis russeliana from semi-ripe cuttings taken in mid-summer. Insert cuttings into a well-draining compost mix and keep them in a warm, humid environment until they root.

Alternatively, sow seeds in autumn or spring, though germination can be slow and erratic.

Repot Phlomis russeliana every 2-3 years, or when rootbound. Spring is the ideal time to repot. Use a free-draining potting mix. Choose a pot that is only slightly larger than the current one to avoid overwatering.

Ensure the new pot has adequate drainage holes.