Salvia urticifolia aka Nettleleaf Sage

Salvia urticifolia is a perennial wildflower in the mint family, Lamiaceae. Its common names include nettleleaf sage and wild sage. It comes from the southeastern United States, including North Carolina. It grows in open woods, along dry woodland edges, and on rock outcrops. Its name refers to leaves that resemble those of nettles.

Plants grow upright, reaching 1–1.8 feet [0.30–0.56 metres] tall. Their spread is 1–2 feet [0.30–0.61 metres]. Green, square stems rise from a thick rhizome. The stems bear hairs and may become woody near the ground. Green leaves grow in opposite pairs along the stems. Each simple leaf has an oval or lance-shaped outline. The base narrows into a wedge, with smooth edges below. Coarse teeth line the edges nearer the tip. Leaves reach about 0.25 feet [0.076 metres] long. Crushing them releases a scent, and they suit potpourri.

The flowers open from April through June. They range from blue to purple, with white markings. The small, sticky blooms form tiers along an upright raceme. Each flower has a tube and a distinct lower lip. Three lobes form this lip, which bears clear white marks. Bees and other pollinators visit the blooms. Black fruit develops in summer. Each fruit is a schizocarp with four sections. These split apart into four nutlets, each holding one seed.

Grow nettleleaf sage in partial shade or dappled light. It prefers dry soil and needs good drainage. Neutral to alkaline soil suits it better than acid soil. It accepts clay, loam, sand, and shallow, rocky ground. Established plants withstand drought, and poor soil is not a major barrier. Its listed hardiness range spans USDA zones 6–9. Growth proceeds at a moderate rate. It needs little upkeep and is easy to grow. Gardeners can raise it from seed or divide existing plants.

Use it in woodland borders, small groups, or native gardens. It also suits pollinator gardens and containers that drain well. Its flowers draw bees and butterflies. Dead, hollow stems provide nest sites for native bees. Leaving shortened dead stems standing helps preserve those sites. Plants can be hard to find for sale. NC State reports few major pest or disease concerns. Its page also flags southern blight as a possible disease.