What is this plant with white flowers?
This is a very invasive plant called garlic mustard (Alliaria petiolata). The first year it just grows low leaves and in the second year it grows tall and blooms with white flowers. It spreads very effectively by seeds. Pull out all that you see and dispose of them in the trash.
You will find details about garlic mustard on our website, https://extension.umd.edu/hgic/topics/garlic-mustard and in our
I am glad I asked! I will pull it up today.