Some of you may have known this already, but I didn't. I've seen this stated a few different places. Even more reason to remove Alliaria petiolata (Garlic Mustard)Here is the site I'm quoting from:New Jersey Agricultural Experiment Station (Rutgers)"Research shows that garlic mustard is allelopathic, meaning that it releases chemicals which can inhibit the growth of other.plant species."
I’m not surprised. I have been pulling Garlic Mustard wherever I see it for years, and it is often the only thing growing. But, it is also known to sprout much earlier than many natives. I have found that early removal of GM allows surrounding plants to thrive.
I don't have that much yet, but thanks Martha for the info. If it gets worse in my yard, that should help.