Erysimum 'Chelsea Jacket'

;Description: small, short-lived perennial usually grown for its long-lasting and brightly coloured flowers. Closely related to Cheiranthus. This plant has been given an RHS Award of Garden Merit. ;Size: height 30 cm, prostrate habit. ;Habitat: likes full sun and well-drained soil, and is hardy. ;Flowers: continually from late spring to late summer. Flowers start off yellow then fade through tangerine to purple, often with a succession of colours on the same flower head.