Achillea 'Moonshine' is a clump-forming perennial with small yellow flowers tightly clustered together in large, flat-topped flowerheads. It blooms from May through August on stems that stand 2 feet high with lacy fernlike foliage. In 1993 ‘Moonshine’ was given the Award of Garden Merit by the Royal Horticultural Society. It likes full sun and dry conditions and tolerates drought well. It is attractive to butterflies and hummingbirds while resistant to deer and rabbits. The genus name Achillea is in reference to Achilles, hero of the Trojan Wars in Greek mythology, who used the plant medicinally to stop bleeding and heal the wounds of his soldiers.