Moth Mullein

Moth Mullein plant
Moth Mullein leaves
Moth Mullein flower

Moth Mullein

Verbascum blattaria

Information Sheet (PDF)


Colorado List B - Eradication required in Jefferson County


General

  • Family: Figwort (Scrophulariaceae )
  • Introduced from Eurasia as an ornamental


Habitat

  • Biennial forb
  • Found in pastures, hay fields, rights-of-way and disturbed sites


Plant


Vegetation

  • Leaves alternate, 4 inches long and 1½ inches wide, oblong, tapering to a point, with distinctly toothed margins
  • Lower leaves are strongly clasping
  • Stems single, may branch towards the end


Roots

  • Tap root


Flower

  • ¾ - 1¼ inches wide
  • 5-lobed
  • In a spike to 20 inches long
  • May - September
  • White to yellow with purple centers


Seed

  • Seeds in rounded pod, may remain viable for up to 90 years


Seedling

  • Late spring
  • Rosette to 16 inches wide


Reproduction

  • Seed


Control


Biological

  • None


Chemical


Cultural

  • Prevention
  • Removal - Early plants before flower set


Mechanical

  • Burning - N/A
  • Grazing - N/A
  • Mowing - N/A


Use all chemicals according to the manufacturer's label. No specific recommendation or endorsement is made or implied by listing methods or products.

 Treatment Timeline


JanFebMarAprMayJuneJulyAugSeptOctNovDec
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Seed