Canada thistle (Cirsium arvense) was one such plant when we moved to Northeast Ohio five years ago.The blue-gray foliage of the rosette-shaped seedlings looked intriguing during spring, and in the ...

Protect your garden and lawn by attacking invasive thistle. These weeds thrive in hot summer weather, so it is essential to prevent their spread.

When Canada thistle infestations occur in situations where root growth would be restricted, such as habitats with high water tables, begin mowing when it is 12 to 15 inches tall. Repeat mowings at ...

Canada thistle is not Canada’s friend. Nor is it Canadian. Originally from Europe and Asia, Canada thistle crossed the ocean in the 1600s and quickly spread to most parts of North America.

This prickly plant has been coming up more and more in our junipers. We keep pulling it out, but it’s like whack-a-mole. What can we do to clean it out of the entire bed? Canada thistle, like… ...

Canada thistle, a terrestrial herbaceous perennial in the Asteraceae family, is an open-land invasive that prefers disturbed upland areas as well as wet areas with water fluctuations. Canada thistle ...

Among garden weeds, the Canada Thistle (cirsium arvense) is a common perennial weed and what I call a “super weed.” It has a dual system of reproduction, by roots and flowers that produce seeds.

Canada thistle (Cirsium arvense) is a perennial that grows from seeds but can also spread by roots. Skip to content. All Sections. Subscribe Now. 76°F. Friday, July 18th 2025 ...

Due to the wet springs we’ve had, common mullein and Canada thistle have been especially prolific the last several years. With seed-heads and flowers on the plants now, both weeds are at their ...

Canada thistle (Cirsium arvense) is probably near the top of the list for just about any gardener and farmers too for that matter. It is a tough perennial broadleaf weed America's most weeded ...