Commonly known as Hoary Verbena, Hoary Vervain, Tall Vervain, and Woolly Verbena. A vigorous, clump-forming perennial that gets its common name from the white pubescence on its gray-green leaves and stems. It typically occurs in prairies, glades, thickets, fields, waste ground and along railroads and roadsides. It grows in a narrow clump to 2-4’ tall and features blue-purple flowers (to 1/2” long) in narrow, upright, pencil-like, terminal panicles. Flowers are densely packed on the panicles, but bloom only a few at a time from bottom to top. Flowers appear from May to September, but primarily in summer and are attractive to hummingbirds, butterflies, and other pollinators. Foliage has a gray-green appearance.
Easily grown in average, dry to medium, well-drained soils in part shade (full sun in northern states). May thrive in dryish, sandy soils. Often will naturalize by self-seeding to form colonies. Remove the spent flowering spikes before seed matures to prevent any unwanted self-seeding.
Height: 2′-4′ Spread: 1.5′-2′ Bloom: July-September Light: Full Sun-Part Shade Water: Low-Medium Zone: 3-8 Origin: Texas, North America
