Dianthus, Siberian Blue Dianthus amurensis
Deep blue-mauve flowers cover 16 in. tall x 12 in. wide plants from late spring until frost, despite summer heat and humidity. Foliage is fine-textured and bluish-gray. This hardy perennial will bloom profusely the first year from seed, and continue for many years. Easy to grow, hard to forget. Perennial zn 3-8 1 in.,