English daisy. This old-fashioned perennial favorite forms low mats of rich green foliage topped by double, rose-pink daisies on slender stalks. Established plants typically reach no more than 6” tall and spread to 18” across. Cheery and colorful for the foreground of perennial borders, rock gardens or containers, ‘Rob Roy’ does best in full sun and well drained soils with regular water. Hardy to 0F. Europe, Asia.