Bronze Bugleweed is a common name for several varieties of Ajuga reptans, an excellent groundcover that grows 6-9 inches tall and spreads by runners to create a carpet of foliage. It prefers shade and well-drained soil and spreads rapidly but is easy to control by pulling unwanted plants. Beautiful blue flowers appear from spring through June. Leaves become bronzy later in the season. Tip: This plant is superb for covering bare areas around trees, where mowing could injure tree roots.