Artificial grass offers a low-maintenance, green landscape all year round, but weeds can still become a problem. Weeds may sprout through drainage holes or around the edges of artificial turf, making proper weed control essential.

Choosing the right weed killer ensures your artificial lawn stays pristine without damaging the synthetic material.

Whether you’re dealing with occasional intruders or persistent growth, these weed killers offer powerful solutions for maintaining weed-free turf.

This article explores the top 10 best weed killers for artificial grass, detailing their features, effectiveness, and safety. Learn what to use, how to apply it, and how to protect your investment in artificial landscaping.

Top 10 Best Weed Killers for Artificial Grass

1. Roundup Ready-To-Use Weed & Grass Killer III

This non-selective herbicide is a go-to for tackling weeds around artificial grass installations. Its formula kills weeds to the root and shows visible results within hours. It is safe for use along edges, seams, and infill layers when applied carefully.

Apply during dry, calm weather for maximum effectiveness. Protective gear such as gloves and goggles is advised during application. Avoid overspray to preserve nearby decorative plants.

Roundup is rainproof within 10 minutes and works on a wide variety of common weeds. It is ideal for spot treatment along turf borders. Multiple applications may be necessary for deep-rooted weeds.

2. Spectracide Weed & Grass Killer

Spectracide is a fast-acting weed killer with visible results in as little as 3 hours. It targets broadleaf weeds and grasses without affecting synthetic surfaces. Ideal for treating joints and seams in artificial grass installations.

The ready-to-use formula makes application simple and convenient. Avoid contact with desirable vegetation. Always wear protective gear to reduce exposure risks.

This weed killer is best used in dry, sunny conditions. Reapplication may be needed for persistent growth. It is highly rated for residential landscapes and synthetic turf maintenance.

3. Green Gobbler Vinegar Weed & Grass Killer

Green Gobbler is an organic, glyphosate-free weed killer made from corn-derived vinegar. It offers a natural alternative for eco-conscious turf owners. Effective on dandelions, crabgrass, and other surface weeds.

This biodegradable option works within 24 hours and is safe around children and pets when used correctly. Apply directly to unwanted plants using a spray nozzle. Avoid runoff into garden beds or lawns.

Green Gobbler is best for light to moderate infestations. Its organic nature reduces environmental concerns. Store in a cool, dry place after use.

4. Ortho GroundClear Weed & Grass Killer

This non-selective herbicide quickly dries and kills unwanted vegetation. Suitable for use around artificial turf borders and between paver gaps. It is rainproof within 2 hours and safe to walk on after it dries.

Ortho’s formula targets the leaves and root system, offering lasting control. Use during warm, dry days for best performance. Avoid contact with decorative plants and natural grass areas.

Its ergonomic spray bottle offers precise application. Repeat as needed for stubborn or regrowing weeds. Dispose of containers according to local regulations.

5. ECO Garden Pro – Organic Vinegar Weed Killer

ECO Garden Pro is a natural, pet-safe weed killer designed for use on artificial turf. It kills weeds fast without harmful chemicals, using organic acids. Suitable for homes with children and pets.

Apply directly to unwanted growth, ensuring good coverage. Avoid using before rain for best results. This product is biodegradable and environmentally friendly.

Ideal for eco-friendly gardeners looking to control weeds naturally. Works well on visible weeds but does not prevent future growth. Reapply when needed.

6. Bonide BurnOut Weed & Grass Killer

This fast-acting weed killer uses citric acid and clove oil to eliminate weeds on contact. Ideal for treating areas around artificial grass, patios, and driveways. Safe for organic gardening and pet-friendly.

Visible results can appear within hours. It does not translocate to the roots, so follow-up treatments may be necessary. Use during full sun exposure for enhanced effect.

Perfect for treating edge growth or post-installation maintenance. Keep children and pets away until dry. Store in original container and away from sunlight.

7. Avenger Organics Natural Weed Killer

Avenger is an OMRI-listed organic herbicide safe for synthetic turf environments. It contains citrus oil, which strips the weed’s cuticle and causes dehydration. Quick-drying and effective on broadleaf weeds and grasses.

It can be used near playgrounds and pet zones. Shake well before use and apply directly to the target area. Do not mix with other herbicides.

This product offers a fresh citrus scent and fast action. It does not linger in the environment. Reapply as needed to maintain weed-free turf.

8. BioSafe Systems AXXE Broad Spectrum Herbicide

AXXE is a non-selective, contact herbicide that uses ammonium nonanoate. Ideal for use around artificial grass, driveways, and pavers. It kills weeds within hours and decomposes quickly in the environment.

Apply directly to the foliage, ensuring full coverage. Wear gloves and eye protection. Do not use on windy days to prevent drift.

This product is safe for use in organic gardening. Best results are seen on younger weeds. Reapply as needed for new growth.

9. Preen Garden Weed Preventer

Unlike post-emergent herbicides, Preen is a weed preventer that stops seeds from germinating. Use it after installing artificial turf to reduce weed intrusion through drainage holes. It is not effective on existing weeds.

Sprinkle evenly over the area and water lightly. Reapply every few months as needed. It does not harm synthetic surfaces.

Best used in combination with a post-emergent herbicide. Helps maintain a clean, low-maintenance turf surface. Safe for pets once settled.

10. Southern Ag Amine 2,4-D Weed Killer

This selective herbicide is ideal for controlling broadleaf weeds along artificial turf edges. It does not affect most grasses, making it useful for mixed areas. Avoid overspray on ornamental plants.

Apply using a handheld or backpack sprayer. Use during calm weather for targeted application. Results appear within a week of treatment.

Southern Ag’s 2,4-D formula is popular for home and landscape maintenance. It can be mixed with other products for wider weed control. Always follow the safety guidelines listed on the label.

Buyer’s Tips for Choosing the Best Weed Killer for Artificial Grass

• Choose non-staining formulas safe for synthetic turf.
• Select pet- and child-safe products when needed.
• Use systemic herbicides for root-killing action.
• Check for ease of use and ready-to-use options.
• Look for biodegradable, eco-friendly options.
• Use weed preventers after installation for long-term control.
• Always follow manufacturer’s application instructions.

Best Weed Killer for Artificial Grass  (FAQs)

1. Can weeds grow through artificial grass? Yes, they can grow through seams, edges, or drainage holes if not properly managed.
2. What type of weed killer is safe for artificial turf? Non-staining, non-selective or organic weed killers are best for artificial turf.
3. Are vinegar-based herbicides effective on artificial grass? Yes, especially for surface weeds and spot treatments.
4. How often should I apply weed killer on artificial grass? As needed, typically every few weeks or after rain to control new growth.
5. Can I use pre-emergent herbicides with turf? Yes, pre-emergents like Preen can help prevent weed seed germination.
6. Will herbicides discolor my synthetic turf? Some may stain, so always test on a small area or choose non-staining formulas.
7. Do I need to remove dead weeds after spraying? Yes, manually remove dead weeds to maintain clean turf appearance.

Conclusion

Maintaining artificial grass involves choosing weed killers that are both effective and safe for synthetic materials.

From powerful systemic options to organic and pet-friendly alternatives, this list provides reliable solutions for controlling weeds around your artificial lawn.

Always prioritize safe application practices and proper storage. Combine chemical and physical methods for best results. By using the right weed killer, your artificial turf can stay clean, green, and weed-free all year round.