This site is infested with garlic mustard (Alliaria petiolata). The rounded/hart shaped basil leaves are the first years growth on this biennial invasive species. This plat will crow out native plants and will grow in total shade or full sun. In the spring when the small four peddled flowers appear is a good time to pull the second year plants to control the production of seeds and stop it from spreading. It will take five plus years to bring this invasive under control.