Water Iberis carnosa regularly during the growing season, allowing the soil to dry out slightly between waterings. Reduce watering significantly in winter to prevent root rot.

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

Prune Iberis carnosa immediately after flowering to maintain a neat shape and encourage denser growth. Remove spent flower stalks and trim back any leggy stems.

This also helps prevent the plant from becoming woody and overgrown.

Propagate Iberis carnosa from seeds sown in spring or by taking semi-ripe cuttings in summer. Seeds can be sown in a light, sandy soil mix. Cuttings root well in a moist, well-drained medium.

Repot Iberis carnosa every two to three years, or when the plant becomes root-bound. Do this in early spring before new growth begins.

Use a well-draining potting mix and a pot that is only slightly larger than the current one.