Brassicaceae: a downy, grey-green perennial to 80cm, the base of which is not woody. Found associated with coastal dunes and sea cliffs. The flowers are fragrant, 25-30mm across, with 4 pinkish petals. Blooming from June-August. The seed pods are narrow, and elongated. The leaves are narrow, with toothed or lobed margins. A rare native of the British Isles, Southwestern England, South Wales, Southern Ireland and the Channel Islands only. Native to Spain to Turkey in Europe and north-western Africa.
Prefers a fertile neutral or slightly alkaline soil in full sun. Plants grow best in a sandy soil in a warm, sheltered position. A very ornamental plant, it is also a good butterfly plant. Sow seeds from early spring in a greenhouse. Germination usually takes place within 2 weeks. When they are large enough to handle, prick the seedlings out into individual pots and plant them out in the summer.