With a common name like carpetweed and bugleweed, you would be right in assuming that this plant is a vigorous grower. Each growing point of the plant is actually a little rosette of foliage. Ajuga spreads steadily by sending out plenty of wandering stolons. Stolons are essentially horizontal roots that grow outward from the plant. At each node on this stolon, the plant also sends down roots and forms another crown of leaves—so as they grow, they create little colonies of plants. This also makes sharing super easy: simply dig up a few of these rooted sections and pass them along.