|The cultivar, 'John Coutts' is a perennial with a clump-forming habit. The flowers are a vivid primrose-pink.
C. hypoleuca have plants that are attractive to bees and butterflies, and are good cut flowers. Sow seeds late summer or early fall in milder climates or early spring in colder climates. Plants will do better if lime is added to the soil, especially in acidic areas.