Mullein, Large-Flowered

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Images courtesy of Jelitto Staudensamen GmbH. Verbascum densiflorum Spires of yellow flowers, sometimes with red centres, in summer. Forms an upright clump of felted grey-green lea ves. Biennial; allow to self-seed. Not to be confused with the noxious weed, Verbascum thapsus. Attracts pollinators. Average to poor, well-drained soil; drought tolerant once established. Sun. Ht. 100cm (40 in.) Sp. 30-45cm (12-18 in.) Zone 4, possibly hardier Show more