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 ...

Each winter after Russian thistle plants die, the brittle bushy parts ... which many consider beautiful with their reddish-purple striped stems, tender leaves, and delicate flowers.