How to Kill Ground Elder

How to Kill Ground Elder Permanently: A Comprehensive Guide


Dealing with ground elder can be a frustrating and challenging task for any gardener. This invasive weed can quickly take over your garden, suffocating other plants and making it difficult to maintain a healthy and vibrant landscape. In this comprehensive guide, we will explore proven techniques and solutions to effectively kill ground elder permanently. Whether you’re an experienced gardener or a beginner, this article will equip you with the knowledge and strategies you need to tackle this persistent weed.

How to Kill Ground Elder Permanently

Ground elder can be an unyielding enemy, but armed with the right knowledge and tools, you can win the battle and reclaim your garden.

Understanding Ground Elder (Aegopodium Podagraria)

Before we delve into the eradication methods, it’s essential to understand the enemy we’re up against. Ground elder, scientifically known as Aegopodium Podagraria, is a perennial weed that spreads through underground rhizomes. Its heart-shaped leaves and umbrella-like clusters of white flowers make it visually appealing but deceptive. Once it establishes itself in your garden, ground elder can quickly become invasive due to its aggressive growth and ability to outcompete other plants.

1. Early Detection and Prevention

The best way to deal with ground elder is to prevent it from taking root in the first place. Regularly inspect your garden for any signs of this weed, especially in early spring when it starts to emerge. If you spot any ground elder, take immediate action to remove it before it has a chance to spread.

2. Manual Removal

Ground Elder Manual Removal

For small infestations, manual removal can be effective. Use a hand trowel or fork to carefully dig around the plant, ensuring you remove the entire root system. Be persistent and thorough, as any remaining roots can regenerate the plant.

3. Smothering

Ground Elder Smothering

When it comes to eradicating ground elder without resorting to chemicals, smothering is a highly effective and eco-friendly approach. This method involves using physical barriers to suffocate and eliminate the weed. Smothering denies ground elder the sunlight it needs for photosynthesis, eventually leading to its demise. Here’s how to effectively employ the smothering technique:

1. Choose the Right Materials: To smother ground elder, you’ll need materials that can block sunlight effectively. Opt for thick, sturdy materials such as cardboard or multiple layers of newspaper. These materials will form a formidable barrier, preventing sunlight from reaching the weed.

2. Clear the Area: Before laying down the smothering materials, clear the affected area of any debris, weeds, or plant remnants. You want to ensure a clean and smooth surface for optimal coverage.

3. Lay Down Cardboard or Newspaper: Spread the cardboard or layers of newspaper directly over the ground elder-infested area. Ensure complete coverage, leaving no gaps or spaces for sunlight to penetrate.

4. Add a Thick Layer of Mulch: On top of the cardboard or newspaper, add a generous layer of mulch. Mulch not only enhances the smothering effect but also helps with moisture retention and weed suppression.

5. Monitor and Reapply: Keep a close eye on the covered area to ensure no ground elder manages to find its way through. If you spot any new growth attempting to break through, add additional layers of cardboard or newspaper to reinforce the smothering barrier.

6. Patience is Key: Smothering is effective, but it may take several months for the ground elder to completely perish. Be patient and allow the method to work its magic.

7. Consider Solarization: In warmer months, consider combining smothering with solarization for maximum impact. Solarization involves covering the area with a clear plastic sheet to trap heat and raise the temperature underneath, further aiding in weed eradication.

8. Remove Smothered Ground Elder Properly: Once the ground elder has died off, carefully remove the smothering materials and any remnants of the weed. Dispose of them properly to prevent any chance of reinfestation.

Advantages of Smothering:

  • Non-chemical method: Smothering avoids the use of harmful chemicals, making it environmentally friendly.
  • Cost-effective: The materials needed for smothering, such as cardboard and mulch, are relatively inexpensive.
  • Safe for Surrounding Plants: Unlike herbicides, smothering does not harm nearby plants or beneficial organisms.
  • Prevention of Seed Spread: Smothering prevents ground elder from flowering and producing seeds, limiting its future spread.

While smothering is a highly effective and safe method, it’s best suited for localized infestations or small areas. For larger-scale ground elder problems, combining smothering with other methods, such as manual removal or solarization, can yield better results. Remember, persistence and diligence are essential when dealing with ground elder, and smothering offers a practical and sustainable solution.

4. Regular Cutting

In the battle against ground elder, frequent cutting and mowing can be a valuable tactic to weaken and control its growth. While this method alone may not entirely eradicate the weed, it can significantly reduce its vigor and limit its ability to spread. Here’s how to effectively implement frequent cutting and mowing to combat ground elder:

1. Regular Maintenance Schedule: Establish a regular maintenance schedule for your garden, including cutting and mowing. Aim to mow the affected area at least once every two weeks during the growing season.

2. Use a Sharp Mower Blade: Ensure your lawn mower has a sharp blade. A sharp blade makes cleaner cuts, which are less stressful for plants, including ground elder.

3. Set the Correct Mowing Height: Set your lawn mower to a higher cutting height. Taller grass shades the soil, reducing the amount of sunlight that reaches ground elder and hindering its growth.

4. Mulch the Clippings: Instead of collecting the grass clippings, allow them to remain on the lawn as mulch. The mulch will help retain moisture, improve soil health, and deter ground elder growth.

5. Focus on Ground Elder Infestations: When mowing, pay special attention to areas with ground elder infestations. Frequent cutting will prevent the weed from producing seeds and spreading further.

6. Consistency is Key: Stay consistent with your mowing routine throughout the growing season. Regular cutting will weaken ground elder over time, making it easier to manage.

7. Combine with Other Methods: While frequent cutting and mowing can help weaken ground elder, it may not eliminate the weed entirely. Combine this strategy with other control methods, such as manual removal or smothering, for more effective results.

8. Avoid Overwatering: Ground elder thrives in moist soil conditions. Be mindful not to overwater the area where the weed is present. Proper irrigation practices can help control its growth.

9. Address Shaded Areas: Ground elder prefers partial shade, so consider trimming overhanging branches or thinning out nearby vegetation to allow more sunlight into the affected area.

Advantages of Frequent Cutting and Mowing:

  • Non-chemical approach: This method is safe and environmentally friendly, without the use of harmful chemicals.
  • Prevents seed production: Regular mowing prevents ground elder from producing seeds, reducing its potential to spread.
  • Weaker regrowth: Frequent cutting weakens ground elder, making it easier to manage and control.
  • Improves overall lawn health: Consistent mowing promotes healthy grass growth and competes with ground elder for nutrients.

Remember that ground elder is a persistent weed, and frequent cutting and mowing alone may not completely eradicate it. However, when combined with other control methods and diligent garden maintenance, this strategy can help you keep ground elder in check and maintain a healthier, more resilient garden.

5. Solarization

Ground Elder Solarization

Solarization is a powerful and natural method to combat ground elder by harnessing the sun’s intense heat. This non-chemical approach effectively eradicates the weed and its rhizomes, leaving your garden free from its relentless invasion. Here’s how you can use solarization to your advantage:

1. Choose the Right Time: For solarization to be most effective, conduct it during the hottest months of the year, typically in summer. This ensures maximum heat intensity, which is crucial for the success of the method.

2. Prepare the Area: Clear the ground elder-infested area of any debris, rocks, or plant remnants. Level the soil surface to ensure there are no air pockets or uneven spots.

3. Water the Soil: Before beginning solarization, thoroughly water the area. Moist soil conducts heat better, enhancing the efficiency of the process.

4. Cover with Clear Plastic: Next, cover the ground elder-infested area with a clear plastic sheet. Use a durable, UV-resistant plastic to ensure it withstands prolonged exposure to sunlight. Seal the edges of the plastic to prevent any heat from escaping.

5. Secure the Plastic: Anchor the edges of the plastic sheet with heavy objects like rocks or bricks to prevent it from being blown away by wind.

6. Trapping the Heat: As the sun shines on the clear plastic, it traps the heat, creating a greenhouse effect. The temperature under the plastic rises significantly, effectively cooking the ground elder and its rhizomes.

7. Monitor the Process: Keep a close eye on the solarization process. It may take several weeks to a few months for the heat to thoroughly penetrate the soil and kill the ground elder. Be patient and allow the method to work its magic.

8. Remove the Plastic: Once the solarization process is complete, carefully remove the plastic sheet. Dispose of it properly and avoid disturbing the treated area to prevent any surviving ground elder from reestablishing itself.

9. Rake and Replant: After solarization, gently rake the treated area to remove any remaining debris. You can now replant the area with desired vegetation.

Advantages of Solarization:

  • Environmentally Friendly: Solarization is a chemical-free and eco-friendly method to combat ground elder.
  • Comprehensive Weed Control: The heat from solarization targets not only the weed but also its rhizomes, preventing regrowth.
  • Soil Improvement: Solarization can help improve soil health by killing weed seeds and some soil-borne pathogens.
  • Long-lasting Effects: When done correctly, solarization provides long-lasting control of ground elder.

While solarization is an effective and natural method, it may not be suitable for every garden or climate. It works best in regions with intense and prolonged sunlight, so consider local weather conditions before implementing this method. When combined with other control techniques, solarization can significantly contribute to your battle against ground elder and help you reclaim a weed-free garden.

6. Herbicides: Use with Caution

While chemical herbicides can be potent against ground elder, they can also harm other desirable plants and pollute the environment. If you choose to use herbicides, opt for selective ones that specifically target broad-leaved weeds like ground elder. Always follow the manufacturer’s instructions and apply the herbicide carefully to avoid unintended damage.

7. Natural Herbicides

Alternatively, consider using natural herbicides made from essential oils or vinegar. These eco-friendly options can provide effective control without the negative impacts of synthetic chemicals.

8. Cover Crops

Planting cover crops like rye or buckwheat can help suppress ground elder growth by competing for nutrients and sunlight. These cover crops can be used as a living mulch to keep ground elder in check.

9. Introduce Natural Predators

Nature often provides its own solutions, and in the case of ground elder control, certain insects can come to our aid. Ground beetles are natural predators that feed on ground elder and can help keep its population in check. By creating a welcoming environment for these beneficial insects, you can establish a natural balance in your garden and reduce the spread of ground elder. Here’s how to attract and utilize ground beetles to your advantage:

1. Garden Diversity: Encourage biodiversity in your garden by planting a variety of flowers, herbs, and native plants. Ground beetles thrive in diverse habitats and are more likely to establish themselves in gardens with a wide range of vegetation.

2. Avoid Chemical Pesticides: To attract ground beetles and other beneficial insects, avoid using chemical pesticides and insecticides. These substances not only harm harmful pests but also kill beneficial insects, disrupting the natural balance.

3. Provide Shelter: Ground beetles need shelter during the day, as they are nocturnal predators. Create hiding spots for them by incorporating rocks, logs, or dense plantings where they can seek refuge and rest.

4. Mulch and Compost: Mulching and composting create a healthy environment for ground beetles and other beneficial insects. Mulch provides protection and retains moisture, while compost attracts a variety of insects with its nutrient-rich organic matter.

5. Avoid Excessive Tilling: Excessive tilling disrupts the habitat of ground beetles and other soil-dwelling insects. Limit tilling to only when necessary, allowing these beneficial creatures to thrive undisturbed.

6. Limit Artificial Light at Night: Ground beetles are attracted to darkness and artificial light can deter them from venturing into your garden. Reduce outdoor lighting at night to create a more inviting environment for these nocturnal predators.

7. Water Source: Ground beetles, like all insects, need access to water. Provide a water source, such as a shallow dish filled with water or a small birdbath, to attract and support these predators.

8. Companion Planting: Consider companion planting with species that attract ground beetles. Plants like daisies, sweet alyssum, and marigolds are known to attract these beneficial insects.

9. Be Patient: Establishing a population of ground beetles takes time, so be patient and persistent in creating a garden habitat that supports these helpful predators.

Advantages of Introducing Ground Beetles:

  • Natural Pest Control: Ground beetles are natural predators that target ground elder and other pests in your garden.
  • Environmentally Friendly: Introducing ground beetles avoids the use of harmful chemicals, making it a safe and eco-friendly control method.
  • Balanced Ecosystem: By encouraging beneficial insects like ground beetles, you promote a balanced and healthy ecosystem in your garden.

While ground beetles are beneficial predators, they may not entirely eliminate ground elder on their own, especially in severe infestations. Consider combining this method with other control techniques to achieve the most effective and sustainable results. By inviting these natural allies into your garden, you can foster a harmonious environment and naturally suppress the spread of ground elder.

10. Persistent Mulching

Maintain a thick layer of mulch around desirable plants to suppress ground elder growth and prevent it from spreading.

11. Boiling Water Treatment

Boiling water can be poured directly onto ground elder patches to scald and kill the weed. However, exercise caution to avoid harming nearby plants.

12. Landscape Fabric

Using landscape fabric can prevent ground elder from emerging through the soil. Cut holes in the fabric to allow your desired plants to grow while keeping ground elder at bay.

13. Focus on Soil Health

Improve your soil health by adding organic matter and compost. Healthy soil will support strong plant growth, making it more challenging for ground elder to compete.

14. Mulch with Wood Chips

Using wood chips as mulch not only improves soil quality but also discourages ground elder growth.

15. Combine Multiple Methods

For stubborn infestations, it’s often best to combine several eradication methods to maximize effectiveness.

16. Regular Maintenance

Once you’ve successfully removed ground elder, continue to monitor your garden regularly and promptly deal with any new growth to prevent reinfestation.


  • Q: How long does it take to kill ground elder using the solarization method? A: Solarization may take several weeks to a few months to completely kill ground elder, depending on the weather and intensity of sunlight.
  • Q: Can I use ground elder as compost? A: It’s not recommended to use ground elder in compost, as the rhizomes can survive the composting process and reintroduce the weed to your garden.
  • Q: Will ground elder come back after using herbicides? A: If not eradicated thoroughly, ground elder can regrow even after herbicide treatment. Combining herbicides with other methods is advisable for long-lasting results.
  • Q: Is ground elder harmful to humans or pets? A: Ground elder is not toxic to humans or pets, but it can cause skin irritation in some individuals. However, its invasive nature can be harmful to other garden plants.
  • Q: Can I eat ground elder? A: Ground elder is edible, and its young leaves can be used in salads or cooked dishes. However, do not consume it if it has been treated with herbicides.
  • Q: Can ground elder grow in the shade? A: Ground elder prefers partial shade but can also thrive in sunny areas. It is known for its adaptability and can grow in various conditions.


Successfully eradicating ground elder from your garden permanently requires dedication, patience, and a combination of effective strategies. Regular maintenance and prevention are crucial to keeping this invasive weed at bay. By following the tips and techniques outlined in this guide, you can regain control over your garden and enjoy a flourishing landscape free from ground elder’s relentless grasp.