What Is a Weed? Not everyone agrees on which plants are weeds, or what to do about them. Not all weeds need to be eradicated.

Agricultural Productions Systems McLeod/Meeker counties Now is an excellent time to be controlling Canada thistles. It is ...

From: Laura Kieser, Dan Martens and Nathan Winter, University of Minnesota Extension Now is an excellent time to be controlling Canada thistles. It is important to clip or apply herbicides to ...

And, for unlucky home gardeners, in garden beds or lawns. Unlike similar thistles like Canadian thistle, bull thistle doesn't have rhizomes (spreading roots); it spreads solely by seed.