LOOK OUT FOR BEARS at Countryside Gardens. Acanthus spinosus, commonly called bear’s breeches, is a clump-forming perennial which is grown as much for its attractive foliage as for its architecturally bold flower spikes. Features pure white, snapdragon-like flowers enclosed (hooded and subtended) by spiny, reddish-purple bracts and arranged in vertical rows on substantial flower spikes which rise well above the foliage mound to 3-4′ tall. Blooms from late spring into mid summer. Deeply-cut, arching, glossy green, spiny, thistle-like leaves (2-3′ long) form an ornamental mound of long-stalked, basal foliage which usually remains attractive throughout the growing season.