While weeds are a nuisance in most gardens, they reveal problems in the soil. And by knowing these problems, we can moderate and reduce weeds through cultural practices.

Invasive plants may look harmless, even beautiful, but they can alter an ecosystem. Some invasives have been purposely introduced because they are fast-growing and pest-free, and that’s precisely why they’ve become a problem. Not all plants introduced from another continent, referred to as exotics, are invasive. But they’re not native.