Invasive Plant Lists and Guidelines for America and Europe

Invasive Plant Lists and Guidelines for America and Europe

A gardener asked for lists of invasive species in America and Europe, and guidelines or prohibitions on planting them.

Key Resource

The National Park Service maintains a comprehensive database: www.nps.gov/plants/alien/factmain.htm. It includes fact sheets for many invasive species and links to state-specific lists.

Regional Variation

Invasive status is highly regional. A plant invasive in the Southeast may be benign in the Pacific Northwest. Always check your state's list.

Guidelines

• Many states prohibit sale/transport of listed noxious weeds.
• Voluntary codes of conduct exist for nurseries and gardeners.
• Best practice: Choose native or non-invasive alternatives.

For Europe, consult the European and Mediterranean Plant Protection Organization (EPPO) or national environmental agencies.