H4 in. xW12 in. Crumpled, congested growth spreads slowly in a lava-like mass, turning deep, purple-black in full sun. Congested spikes of brilliant, marine-blue flowers appear in late spring and summer. An intriguing and unusual foliage plant preferring moist, well-drained soil in sun. Slow-growing, and perfectly suited to the rockery, unlike most other bugleweeds. Hardy to Zone 5.