This weed may invade your land. Be ready to oppose it. The Enemy: Bull thistle (Cirsium vulgare) Strategy: This nonnoxious, biannual, invasive weed can be found throughout Idaho. It has hairy, deeply ...

Bull thistle with spikes and pinkish-purple flower - weha/Shutterstock Thistles have a strange beauty, and the native species of these tough, purple-flowered plants feed pollinators and other forms of ...

Thistle can spread quickly and will compete with other plants for water and nutrients. To get rid of thistle, simply pull it out of the soil by hand. Mulch can help prevent thistle from coming back.

Thistles have a strange beauty, and the native species of these tough, purple-flowered plants feed pollinators and other forms of wildlife. But don't treat bull thistle (Cirsium vulgare) as a flower — ...