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

Canada thistle (Cirsium arvense) may sound friendly and indeed it has a lovely purple flower, but gardeners and landowners know better. This prickly perennial weed is a menace and is listed as a ...

Canada thistle (Cirsium arvense) is an aggressive, creeping perennial weed that infests crops, pastures, rangeland, roadsides and noncrop areas. Generally, infestations start on disturbed ground ...

Canada thistle (Cirsium arvense) is an aggressive, invasive plant. Here's how it spreads and how to identify it so it doesn't take over your garden.

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 that is easily ...

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 creeping perennial broadleaf that is native to the Mediterranean area. It can spread very quickly as it sends out underground stems called rhizomes and by ...

ANSWER: Canada thistle (Cirsium arvense) is a perennial that grows from seeds but can also spread by roots. Eliminating thistle may take several years. Prompt control will yield better results.

From the asteraceae family and originating from Europe, Canada thistle (Cirsium arvense) is my least favorite of all wildflowers. With pale, lilac clustered flowers, measuring 0.5 inches to 0.75 ...

Canada thistle (Cirsium arvense) is a creeping perennial broadleaf that is native to the Mediterranean area. It spreads rapidly through underground stems called rhizomes and by producing seeds. It ...

In mid September I was walking on the CU campus when I noticed a teeming population of weevils on a small cluster of Canada thistles. Almost half of them were amplectic. Several hours later, when I… ...