Add Yahoo as a preferred source to see more of our stories on Google. Canada thistle is an invasive plant with a deep, extensive root system that requires persistence to completely remove from your ...

The Penn State Extension of Berks County Master Gardeners will be featuring questions and answers to inquires received through its Garden Hotline. ANSWER: Canada thistle (Cirsium arvense) is a ...

Q: How do I get rid of invasive thistle on my property? A: Canada thistle (Cirsium arvense) is a perennial that grows from seeds but can also spread by roots. Eliminating thistle may take several ...

Answer Man: I was driving along Norton Road when I spotted some musk thistle, a plant considered a noxious weed. I think as recently as five years ago there was a musk thistle hotline to call — and ...