For a ground cover that is dense and quickly spreading, look to Ajuga 'Chocolate Chip'. The “chocolate” in its name comes from the deep, chocolate-brown color that makes up much of the plant, with undertones of shiny, dark green. In springtime, blue-purple flowers spike up from the mats of foliage. This plant is particularly tight-growing, so it forms a gorgeous mat of deep color. It is a low-maintenance choice when you need to fill space with something pretty. Ajuga's mat of foliage grows to about 3" high, with flower spikes reaching a height of about 6". This plant is ideal as a ground cover beneath trees, between stepping stones, on slopes, or as a replacement for turf in small, flat areas. It also strikes a smart look in containers, where the flowers can spill over the sides and the foliage fills the container to the brim’s edges. It attracts the human eye, but it will not attract deer or rabbits.