Silver Sage

"This biennial or short-lived perennial is grown for its massive, downy-silver rosettes of foliage. In its second year, it spawns plumes of white or pinkish flowers with gray calyces in mid- to late summer. The plant has a spiky form, 3 feet tall by 2 feet wide. Locate it where the rosettes can be easily seen"(http://www.finegardening.com/plantguide/salvia-argentea-silver-sage.aspx)