Easily grown in ordinary well-drained soil. Succeeds in dry soils and on walls.

Young leaves - cooked.

Seed - it is best to surface sow the seed as soon as it is ripe in a light position in a cold frame. Seed can also be sown in spring. It usually germinates in 2 - 3 weeks at 21°c. When large enough to handle, prick the seedlings out into individual pots and plant them out in the summer. Division after flowering. Very easy, the divisions can be planted out straight into their permanent positions if required. Cuttings in a shady border in summer.

Chalk and limestone slopes, limestone rocks and walls, dunes and dry banks.