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. In Ontario, ...

Q. Several months ago you recommended spraying Canadian thistle with Roundup to get rid of it. I am an organic gardener, what can I do? A. Roundup is one of the very few chemicals that I use. I began ...

Now is an excellent time to be controlling Canada thistles. It is important to clip or apply herbicides to Canada thistle before they flower and produce more seed. Unfortunately, many of the thistles ...

Dear Johnnie: I live in a small subdivision just outside Longmont city limits. Each day as I walk my dog, I am more and more distressed by one homeowner who apparently thinks Canadian thistles are ...

Canada thistle is a rather common plant around Siouxland. It likes to grow in disturbed areas such as roadsides, construction sites or even the fluctuating water levels along wetlands. I'm not sure ...

Is there not a law regarding noxious weeds? … If there is, how can the city and the ditch companies allow the Canadian thistles to just grow rampant along the ditch banks of the Oligarchy and the ...