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Canada thistle is a non-native, creeping perennial, list B noxious weed. It spre…

Canada thistle is a non-native, creeping perennial, list B noxious weed. It spreads through its roots as well as seed production. The flowers are fairly small, about the size of your thumb, and the plant is typically knee high. Due to the extensive root system of this plant, mowing alone is a difficult way to control its growth. However, mowing or grazing combined with a chemical treatment can be a very effective way to eliminate this plant. Go to www.weldweeds.org for more information on Canada Thistle.

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