Yarrow, also known as Achillea. I used to have the pink cultivar, known as Cherise Queen. Yarrow can grow invasively, and is a native perennial. It stinks!!! It smells like chamomile in my eyes, and I can't stand chamomile. Now that is beyond invasive, I have yanked out more chamomile than Carter has pills. Beautiful day, loving this life we all live and share. Cindi