From May through October, you'll find five-petalled, papery white to pale purple notched flowers floating above the grass. They spread via seeds and stray plant parts. Since musk thistle (Carduus ...

Psstthese are the worst invasive plants you should never grow. “We discovered Canada thistle growing in our ... recommends ...

The plant’s flowers are purple. Milk thistle is also known as Saint Mary’s Thistle, holy thistle, variegated thistle, and Scotch thistle. Throughout history, milk thistle has also been used to ...

Need a break? Play the USA TODAY Daily Crossword Puzzle. As a plant, milk thistle has bright magenta or purple flowers surrounded by large, prickly leaves, "which expel a milky white sap when ...