How to Get Rid of Perennials

- Use a spade or shovel to dig up the entire root system.

- Ensure to get as much of the roots as possible, as any left behind can regrow.

2. Smothering:

- Cover the entire plant and surrounding area with a thick layer of mulch, newspaper, or cardboard.

- This blocks sunlight and prevents photosynthesis, eventually killing the plant.

- Keep the area covered for at least 6-8 weeks.

3. Solarization:

- Clear the area around the perennial and water the soil thoroughly.

- Cover the area with transparent plastic sheeting and secure the edges.

- The trapped heat from the sun will cook and kill the plant and its roots.

- Leave the plastic in place for at least 4-6 weeks during hot weather.

4. Boiling Water:

- Bring a pot of water to a boil and carefully pour it over the entire plant.

- The boiling water will kill the above-ground parts and penetrate the soil to some extent.

- Repeat the process if necessary.

5. Chemical Treatment:

- Use a non-selective herbicide containing glyphosate or a systemic herbicide specifically labeled for perennials.

- Apply the herbicide to the foliage according to the package instructions.

- Ensure the herbicide is applied when the plant is actively growing.

6. Cutting:

- Cut the perennial down to the ground several times during the growing season.

- This prevents it from producing food through photosynthesis and depletes its energy reserves, eventually killing it.

7. Burning:

- Burn the perennial using a weed torch or carefully controlled fire.

- This method is not recommended in areas with dry vegetation or fire restrictions.

8. Salt:

- Apply table salt directly to the center of the perennial plant, or dissolve salt in water and pour it over the plant.

- The salt will draw moisture out of the plant, causing it to wilt and die.

Note: Some perennial plants are more difficult to remove than others. Always research the specific species you are dealing with and select the most appropriate method for your situation.