Campanula punctata 'Purple'Evergreen spreading perennial with highly showy 2" dark blue/purple flowers spring and summer. Grows in sun or light shade. Prefers moist spots and good drainage. Flowers can reach 15" in height when mature. Easy to grow. Cut back to remove spent flowers/spikes. Use all purpose fertilizer. Doesn't spread as much as others of its type! USDA zone 5 in cold hardiness.