Verbascum thapsus (Common Mullein)

Verbascum thapsus (Common Mullein) is a densely woolly, sturdy biennial forming a rosette of large, soft, densely-hairy, silver-green leaves, 6-15 in. long (15-37 cm) in its first year. Rising from the center of the rosette, a tall flower spike bearing a succession of 5-lobed, saucer-shaped, yellow flowers, appears in the second year. They bloom from early summer to early fall and give way to egg-shaped, downy seed capsules. Common Mullein dies once flowering ends. However, seeds are produced in profusion. Individual plants produce 200-300 seed capsules, each containing 500-800 seeds. Native to Eurasia, Common Mullein has naturalized throughout most of North America. It is found in many habitats, occurring primarily in disturbed soils in full sun. Generally not an aggressively invasive species in some areas, it is listed as a noxious weed in Colorado and Hawaii.

• Grows up to 2-7 ft. tall (60-210 cm) and 18-30 in. wide (45-75 cm). May need support.
• Enjoys full sun in average, dry to medium, well-drained soils. It is not fussy about soils and tolerates poor dry soils. However, good drainage is essential. Alkaline soils are preferred and acid soils should be avoided. Drought tolerant once established.
• Attracts scores of pollinators, including butterflies and bees. Deer and rabbit resistant.
• Well suited for beds and borders, cottage gardens, gravel gardens, or prairies and meadows.
• No serious pest or disease issues. Keep an eye out for spider mites, weevils, slugs, or powdery mildew.
• Propagate by seed or division in spring.
• Native to Europe, Asia.
• Find where this species is invasive in the United States.
• Discover beautiful U.S. native plant alternatives.