However, Scotch thistle, and other biennials, does have some capacity to regrow if it is injured, like perennial weeds ... seed heads are a collection of florets, and each seed is attached to a pappus ...

Fall tillage should be shallow (less than four inches) to avoid deep burial of weed seeds. Alternating intensive tillage during fallow years with cropping and spring and fall tillage can be used to ...

But we really want people to retain good thistles, and even plant them ... that spread only via seed,” Anderson says. “But ...