Expert Tips to Get Rid of ThistlesThistle is tricky because birds and butterflies love it, but gardeners and farmers hate it. We asked our gardening expert for advice on how to get rid of thistle ...

Yes, they are. The thistles named above — Italian, bull and star — are highly invasive. They can overwhelm pastureland, and cattle don’t readily eat them unless trained.

The thistle growing in Streeter’s yard is classified as a Cirsium vulgare or bull thistle. Streeter said he researched the current world record for the tallest thistle in Guinness World Records.

June is a good time to scan fields for giant, showy, invasive musk thistles that are enjoying a banner season in 2023 in some areas. How to tell if thistles are native or noxious Skip to main ...

Thistles are classified as an invasive weed in the United States. There are more than 10 identified species. The thistle growing in Streeter’s yard is classified as a Cirsium vulgare or bull ...