Water consistently, keeping the soil evenly moist but not waterlogged, especially during active growth. Allow the top few centimeters of soil to dry out slightly between waterings.

Reduce watering in winter, providing just enough to prevent the soil from completely drying out.

Deadhead spent flower spikes to encourage repeat blooming and prevent self-seeding if desired. Remove any dead or yellowing leaves at the base of the plant to maintain a tidy appearance and improve air circulation.

Pruning is generally minimal for this species.

Digitalis thapsi can be propagated by seed sown in spring or autumn, either directly outdoors or in a greenhouse. It also readily self-seeds in suitable conditions.

Division of established clumps is also possible in spring, though less common than seed propagation.

Repotting is generally not necessary for Digitalis thapsi as it is often treated as a biennial or short-lived perennial.

If growing in a container, repot only if the plant becomes root-bound, ideally in spring before new growth begins. Use a well-draining potting mix.