Also known as Rockfoil, this is a low alpine plant, forming small rosettes of evergreen leaves in a cushion shape, frosty silver-blue in colour with a ruby-red glow. Taller sprays of tiny white flowers appear in late spring. Best in a partly-shaded rock garden, and especially happy when growing in crevices between rocks. Also nice in trough or container gardens. This is a true alpine plant, rather slow-growing but not difficult. Clumps may be carefully divided in late summer or early spring. Best with protection from hot afternoon sun. Received a Royal Horticultural Society Award of Garden Merit (2003). Selected at Whitehill Garden in Gloucestershire, UK during the 1930s.