Sometimes, they come dressed as eye-popping purple blooms that could ... establishing wherever they touch the soil. Field garlic (Allium vineale) is an invasive weed common to woodland gardens ...

The top leaves of purple deadnettle are reddish-purple ... weak host for soybean cyst nematode. This weed can easily be mistaken for field pennycress; however, shepherd’s purse’s oblong ...

An agronomist in South Dakota says many Midwestern fields are blanketed in the color purple this spring. Darren Hefty, who is ...