Burgundy Glow is a big favorite because of the great color it brings to shady spots--foliage is a collage of greens, pinks and creams. Flowers are deep blue.
All about Ajuga: Gardeners have a love or hate relationship with this easy to grow evergreen perennial. If you have moist shady areas you'd like covered with a colorful blooming carpet, you'll love it. If you let it spread into your lawn, you'll probably hate it, since once it gets there, its hard to eliminate it.
Also called Carpet Bugleweed, Ajuga is a small, spreading member of the mint family (you can always tell mints by their square stems) with foliage and flowers in lovely colors. Many are bi-colored and/or variegated, and make a stunning show in the garden. Its perfect for moist, shady areas contained by retaining walls or other hard edging.