Seeds remain viable for up to 50 years. The flowering period is from late june until frost in the fall. Musk thistle is biennial or sometimes a winter annual, which grows up to 6 feet tall. Leaves are ...

By Krishona Martinson, University of Minnesota Extension There are 11 primary noxious weeds in Minnesota, and they must be controlled on all private and public land. They’re on the noxious ...

Koochiching County officials added noxious weeds to the annual Minnesota Agricultural Department commissioner’s order. The commissioner’s order lists three weeds for eradication, nine for control, two ...