Water Phlomis crinita moderately during the growing season, allowing the soil to dry out between waterings. Reduce watering significantly in winter, as the plant is dormant and susceptible to root rot.

Ensure good drainage to prevent waterlogged conditions.

Prune Phlomis crinita in early spring to remove any dead, damaged, or crossing stems. Light pruning can be done after flowering to maintain shape and encourage bushier growth.

Avoid heavy pruning as it can impact subsequent blooms.

Propagate Phlomis crinita from semi-hardwood cuttings taken in late summer or early autumn. Alternatively, seeds can be sown in autumn or spring. Ensure cuttings are placed in well-draining soil and kept moist.

Repot Phlomis crinita every 2-3 years in spring, or when the plant becomes root-bound. Use a well-draining potting mix. Choose a pot that is only slightly larger than the current one to avoid overwatering issues.