Mullein Verbascum bombyciferum Photo/Illustration: Michelle Gervais 1 2 3 4 5 6 7 8 9 10 11 Mullein (Verbascum bombyciferum) ver-BASS-kum bom-bih-SIF-er-um Synonyms: V. broussa Genus: Verbascum This biennial or short-lived perennial has evergreen woolly leaves like silvery flannel that make sensuous-looking rosettes in the first year. In mid- to late summer of its second year, large sulfur-yellow blossoms open from the bottom up on flower stalks that reach up to 6 feet high. Blooming continues for many weeks. Verbascum bombyciferum has naturalized in regions of the U.S. Noteworthy Characteristics: This species is found on dry, stony hillsides and open woodlands, but is well-adapted to cottage, gravel, and rock gardens or naturalized areas. It will self-sow, but not as a nuisance. Care: Provide well-drained soil in full sun. Verbascums tend to flop in fertile soil. Propagation: Sow seeds directly in the garden in spring or in containers under a cold frame. Divide in spring. Problems: Powdery mildew and other fungal leaf spots. Caterpillars. Overview Height 3 ft. to 6 ft. Spread 1 ft. to 3 ft. Growth Habit Clumps Growth Pace Moderate Grower Light Full Sun Only Moisture Medium Moisture Maintenance Low Characteristics Self Seeds, Showy Flowers, Showy Foliage Bloom Time Late Summer, Summer Flower Color Yellow Flower Foliage Color Evergreen, Silver/Grey Uses Beds and Borders, Naturalizing, Roadside Style Cottage Garden Seasonal Interest Spring Interest Tolerance Deer Tolerant, Drought Tolerant, Frost Tolerant Type Perennials Related Plants to Verbascum bombyciferum 1 2 3 4 5 6 7 8 9 10 11 Chaix mullein Verbascum chaixii 1 2 3 4 5 6 7 8 9 10 11 Dense-flowered mullein Verbascum densiflorum 1 2 3 4 5 6 7 8 9 10 11 Myrtle spurge Euphorbia myrsinites 1 2 3 4 5 6 7 8 9 10 11 Goldenrod Solidago juncea View the discussion thread.