Ajuga

Also called "Carpet Bugleweed," this is a small, spreading evergreen plant that many gardeners love. They love the way it spreads, even in deep shade where even grass won't grow. And they love the foliage and the flowers, which come in lots of colors. It's the perfect solution if you have moist areas in shade where you want the ground covered with a blooming "carpet." Don't plant this fast-spreading plant near a lawn that's watered often, since it can spread into the grass and become a problem. But in contained areas of the garden, it's a beauty.