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 ...

The purple flower heads may look pretty, but don't let that fool you. Milk thistle (Silybum marianum) can be a pain if it's growing in your yard. It's non-native and can be an invasive plant ...