Is Common Mullein Plant Invasive In Gardens?

Filed Under: Weeds, Biennial Plants · Keywords: Is, Common, Mullien, Plant, Invasive · 1468 Views
This plant (weed) has shown up in my flower garden. From my research to find out what it was it must be in its second year as it has the tall stalk and yellow flowers and I remember the rosette last year.

It has been intriguing to watch grow but now I am worried about it becoming invasive. It is a plant worth keeping around?

Thanks for any advice.

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Answer #1 ·'s Answer · Common mullien, Verbascum thapsus, is a reseeding, biennial herb. This means the mother plant dies after two years but if the spent flowers are left on the plant it will reseed. The seeds themselves can lay on or underneath the ground for many years for decades before they finally germinate. In fertile garden beds, this means the plant could become invasive. There are over 300 varieties of mulliens including many new hybrids that do not reseed so are not invasive. This being said, if you really like the common mullien, and want to grow it in your garden, just make sure to remove the flower stalks immediately after all flowers are spent, or be ready to remove the little fuzzy seedlings that might emerge after the seed has dropped. Keep in mind that by removing the spent flowers the plant will only live for two years.

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Steph · Gardenality Bud · Zone 5B · -15° to -10° F
Thanks for the reply. Now I just need to get over the guilt of killing it off. lol I might check into planting one of the new hybrids. Thanks again for the information.

8 years ago ·
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