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 ...

Multiple mowing rounds before the thistles bud out can keep them in check. Bull Thistle Bull thistle (Cirsium vulgare) is another biennial (sometimes annual) invasive weed you should be wary of ...

Q:When we moved in to our house six years ago, the previous owner had allowed the thistles in the corner of a flowerbed to get so large it was an actual bush. We ripped it out, put heavy plastic an… ...

Your plant is called thistle. The flower buds in your photo are mostly closed now and some are ready to open to let the wind carry them for miles. ... The bull thistle is from Europe.

Bull thistle is a highly invasive plant that can be found in the Cambria area. ... But the only way to stop the thistle is to remove the flowers before they go to seed.

Canada thistle can be found in clay to gravelly soils. typically grows 3-5 feet tall; stalk-less leaves around 6 inches long, wavy, lobed leaves with yellow spines at each lobe; stem is spineless, ...