Ajugas

Ajugas is a genus of perennial flowering plants in the mint family (Lamiaceae) that includes roughly 40 to 50 species. Native to Europe, Asia, and parts of Africa, Ajugas are widely cultivated as ornamental plants for shade gardens and ground-cover purposes. The most familiar species in cultivation is Ajuga reptans, commonly known as creeping bugleweed.

Ajugas are low-growing perennials that spread by creeping stolons, forming dense mats. They typically have evergreen to semi-evergreen leaves that range from green to bronze or purple, with some varieties showing variegated patterns. In spring, they produce tall racemes or spikes of flowers in shades of blue, purple, pink, or white, which attract bees and other pollinators. The overall appearance and flowering timing make them popular for visual interest throughout the season.

In cultivation, Ajugas are valued as versatile ground covers for woodland or shaded borders, rock gardens, and under deciduous trees. They prefer fertile, moist, well-drained soils and can tolerate partial sun, though many varieties perform best in light shade. They can spread rapidly and may become invasive in favorable climates, so regular maintenance is advised. Propagation is commonly by division in spring or fall, or by rooting of stolons.

Notable species include Ajuga reptans and Ajuga genevensis, with numerous cultivars selected for leaf color, growth habit, and flower tone (including bronze, purple, or variegated foliage). In gardens, Ajugas provide early-season foliage, mid-spring flowers, and erosion control on slopes, while offering habitat and nectar for pollinators.