Homeowners are being warned about 27 invasive plant species that could wreck havoc if left to spread in the garden ...

As a member of the balsam family, jewelweed (Impatiens capensis ... wildflowers can outcompete some hard-to-eradicate invasive plants, namely garlic mustard (Alliaria petiolata).

One of these monster plants is Himalayan balsam (Impatiens glandulifera). Often, invasive alien plants grow faster and bigger because they don't have to compete with their natural enemies from ...