Tall, sculptural stems add structure and elegance to sunny borders while producing 2" thistle-like blooms ideal for fresh or dried arrangements. Silvery green, deeply lobed foliage provides definition before domed umbels open to crisp, pure white flowers in summertime. This drought-tolerant, salttough perennial thrives in well-drained soil. To enhance winter interest in your garden, resist cutting back the striking flower heads in autumn; instead, leave them to add structure through the colder months.