Bold, deeply cut silvery-green basal leaves create a fountain-like form reaching 3-5 feet high and wide. Fleshy, unopened flower buds are edible. If not harvested, buds are followed by bluish-purple, 6 inch thistle-like flower heads that are excellent for dried arrangements. Herbaceous. OP
Care: Plant 3′ apart in rows 3′ apart in full sun. Harvest before flowers start to open. In October, cut back to 8-10″ from ground and mulch with straw or leaves. Uncover in April.