THISTLES are some of the most pernicious and obnoxious weeds ever invented. The standard farmer’s nightmare version spreads far and wide via tough underground roving roots, and sends forth clouds of ...

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 ...

This-le, noun, widely distributed herbaceous plant of the daisy family, typically has prickly stems and leaves and rounded heads of purple flowers. There are more than 62 varieties of native thistles ...

Once upon a time, no self-respecting gardener would have dreamt of cultivating thistles. However, in recent years many of them have become quite desirable garden plants. Heading the field as one of ...

Purdue Landscape Report: As summer comes to a close, plants are rapidly releasing seeds and the most noticeable are the flying fluffy type. Thistles, asters and milkweed are just a few of the ...

Canada thistle (Cirsium arvense) is an aggressive, creeping perennial weed that infests crops, pastures, rangeland, roadsides and noncrop areas. Generally, infestations start on disturbed ground, ...

The Penn State Extension of Berks County Master Gardeners will be featuring questions and answers to inquires received through their Garden Hotline. Q: How do I get rid of invasive thistle on my ...