Invasive Plant Removal

What makes a plant invasive?

Invasive plants are non-native species that spread aggressively and harm natural areas, farms or waterways. They often grow quickly, produce many seeds and have few natural enemies, so they crowd out the native plants that wildlife depends on.

Which plants count as invasive depends on where you live. Many states keep official lists, and some plants are legally restricted or must be controlled. Check with your state department of agriculture, natural resources agency or extension office.

• Invasive status varies by region
• Some species are legally regulated
• State lists and extension guides are the best reference

How do you identify what you have?

Do not remove anything until you are sure what it is. Many native plants look similar to invasive ones, and pulling the wrong plant makes things worse. Take clear photos of leaves, stems, flowers and fruit through the seasons.

Bring samples or photos to your county extension office, a state invasive plant program or a native plant society. Never taste or eat wild plants for identification, and wear gloves, since some plants can irritate skin.

• Photograph the whole plant in several seasons
• Get expert confirmation
• Protect your skin when handling unknown plants

How do you decide where to start?

Work from the cleanest areas toward the worst. Protect healthy areas first, then tackle small, new infestations before they grow, and leave the thickest, oldest stands for later with a larger plan.

Map what you find. Mark each patch, note the size and whether it is flowering or fruiting, and set priorities based on what is spreading fastest and what is closest to valuable habitat, waterways or neighboring land.

Time is as limited as money on most small farms, so be honest about how much you can handle in a season. A small area cleared and kept clear is more valuable than a large area cleared once and abandoned to reinvasion.

• Protect good areas first
• Catch small patches early
• Make a simple map and update it

What removal methods are there?

Common non-chemical methods include hand pulling, digging, cutting, mowing, smothering and, for some species, repeated cutting. The right method depends on the species and its growth habit. Some plants resprout from roots or stumps and need repeated work.

Bag or dispose of seed heads and root fragments correctly, since some species spread from pieces. Ask your extension office how to dispose of the material in your area, since burning and dumping rules vary.

Wear sturdy gloves, long sleeves and eye protection, and use tools that are sharp and in good repair. Some invasive plants have thorns, sap that irritates skin or spreading roots that make digging hard work, so pace yourself and avoid working alone in heavy brush.

• Match method to species
• Handle seeds and roots carefully
• Ask about local disposal rules

When do herbicides come into the picture?

For some well-established invasives, extension guidance includes herbicide as one option. The label is the law, and products must be used exactly as directed, with attention to timing, weather and nearby water, desirable plants and pollinators.

Near streams, ponds and wetlands, additional restrictions and permits may apply. If you are unsure, hire a licensed applicator or ask your extension office. Do not use any product that is not labeled for your situation.

• Follow the label exactly
• Check rules near water
• Consider a licensed applicator for large or difficult sites

What should you do after removal?

Bare soil invites invaders. Replant promptly with native species suited to your site, or mulch and seed a protective cover. Without a plan for what grows next, the same weeds or new ones fill the gap.

Return to the site several times through the first seasons. Look for resprouts and new seedlings and remove them while they are small. Seeds can remain viable in soil for years, so follow-up is part of the job.

• Replant with native species
• Check the site several times a year
• Expect to repeat work for multiple seasons

How do you stop new invaders from arriving?

Prevention is the cheapest control. Clean boots, tools, equipment and vehicles that have been in infested areas, use certified weed-free hay and mulch where available, and avoid planting species known to escape into natural areas.

Watch the edges of your property, along roads, trails and waterways, where new invaders often show up first. Report new or unusual infestations to your state invasive plant program or extension office.

• Clean equipment between sites
• Use clean seed, hay and mulch
• Report new infestations early

Last reviewed: November 12, 2026. Written by the Homestead & Small Farm Editorial Team. See our editorial policy.