You can nurture your garden for years, pour time and money into it, and still end up breaking the law with one plant. Across the United States, state agriculture departments and environmental agencies have tightened restrictions on certain invasive species. Some of these plants still show up at garden centers, in old landscaping, or in well-meaning seed swaps.
The problem? Once they spread, they bulldoze native ecosystems, clog waterways, and cost millions in control efforts. Several states now fine property owners who continue to grow or sell them. If you love gardening, you need to know which plants can turn your pride and joy into a liability.
