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Common mullein, also called woolly mullein due to the grey hair that covers its leaves, is an erect biennial most commonly found in pastures and along roadsides. Common mullein will invade landscape beds. Common mullein grows to height of three to six foot tall the second year, emerging from a basal rosette which forms from seed the first year. Leaves are elliptic to oblanceolate, covered with gray woolly hair and spiral |
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alternately around an unbranched stem, decreasing in size near the top. Common mullein has a fleshy taproot. The five-petaled flowers of common mullein can be yellow or white. Flowers emerge near the top of the plant where they are crowded along the stalk. Fruit form from October to March in ovoid capsules which split in half to release several seeds. Common mullein spreads from seed. Originally from Europe, common mullein has naturalized in North America and is found throughout the United States and southern Canada. |
| Integrated Pest Management Control Recommendations: |
Cultural Practices:
Common mullein will not mature in mowed turf areas, but may invade landscape
beds which are not treated with a preemergent herbicide and unmowed roughs
on golf courses. Common mullein may be mechanically removed by hand or
cultivation.
Herbicide
Use:
Common mullein may be prevented with the use of a preemergent herbicide
labeled for use in ornamental landscape beds. If using a postemergent
herbicide, best control will be obtained when mullein is young and actively
growing, preferably while still in the first year rosette stage.
