Water Anchusa crispa moderately during its active growing season, typically spring and summer. Allow the soil to dry out slightly between waterings. Reduce watering significantly in autumn and winter to prevent root rot.

Ensure good drainage to avoid waterlogged conditions, which this species dislikes.

Prune Anchusa crispa after flowering to maintain a tidy shape and encourage a second bloom. Remove spent flower stalks and any dead or damaged foliage. Lightly trim back any overgrown stems.

Avoid heavy pruning, as it can stress the plant. Regular deadheading is beneficial.

Propagate Anchusa crispa from seed sown in spring or early autumn, either indoors or directly outdoors in a prepared seedbed. Seeds may require a period of cold stratification to improve germination.

Alternatively, take basal cuttings in late spring or early summer and root them in a well-draining potting mix.

Repot Anchusa crispa every 2-3 years, preferably in spring before new growth begins. Choose a pot that is only slightly larger than the current one, with excellent drainage.

Use a free-draining compost, such as a mix for Mediterranean plants. Handle the roots gently during repotting.