Artificial turf offers a low-maintenance alternative to natural grass, but weed growth can still be a nuisance. Weeds often sprout along the edges, seams, or from underlying soil if proper barriers aren’t in place. Choosing the best weed killer for artificial turf helps maintain its clean, manicured look.

This article explores the top weed killers that are safe for use on and around artificial turf. These products are chosen for their ability to eliminate weeds without damaging synthetic fibers or compromising the integrity of the turf base. Whether for residential lawns or sports fields, these solutions keep your turf weed-free.

Top 10 Best Weed Killers for Artificial Turf

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

This glyphosate-free formula is ideal for artificial turf edges and seams. It kills weeds down to the root without harming synthetic surfaces. Fast-acting and easy to apply with the built-in sprayer.

Works within hours on contact with visible wilting. Ideal for use along fences, pathways, and turf borders. Rainproof in ten minutes ensures longevity even in unpredictable weather.

Not for large area broadcast spraying. Best for spot treatments where weeds break through. Follow label instructions to avoid oversaturation.

2. Green Gobbler Vinegar Weed & Grass Killer

Made with 20% acetic acid, this natural weed killer is non-toxic and biodegradable. It is safe for artificial turf and surrounding landscaping. Best used on warm sunny days for full effectiveness.

It kills on contact and is ideal for spot treatment along seams or borders. Does not leave harmful residue behind. Perfect for families with children or pets.

Multiple applications may be needed for deeply rooted weeds. Avoid runoff to surrounding plants. Store in a cool, dry place for long-term use.

3. Doctor Kirchner Natural Weed & Grass Killer

Formulated with ocean saltwater, vinegar, and soap, this product is tough on weeds but gentle on synthetic turf. It works best on young weeds and prevents reseeding.

Safe for use around play areas and pets. Works within hours and does not require rinsing. Long-lasting shelf life and environmentally friendly ingredients.

Not systemic—reapplication needed for stubborn or recurring weeds. Best when used proactively. Shake well before use.

4. Preen Garden Weed Preventer

Preen prevents weed seeds from germinating, making it ideal for use before installation or after weeding. Apply it around turf edges, pathways, and base joints to maintain a weed-free surface.

Granular format makes it easy to control coverage. It’s non-staining and safe for use on synthetic landscapes. Lasts for weeks with a single application.

Not effective against existing weeds. Use in combination with a post-emergent product. Reapply after heavy rainfall or irrigation.

5. EcoSMART Organic Weed & Grass Killer

This plant-based formula kills weeds on contact using essential oils. It is certified organic and safe for pets and children. Works well for surface weeds and artificial grass installations.

Breaks down quickly and leaves no residue. Visible results within a day. Good for regular maintenance in turf-covered areas.

Not for large-scale infestations. Multiple treatments may be needed. Store upright and tightly sealed.

6. Ortho GroundClear Weed & Grass Killer

This fast-acting, non-selective herbicide targets weeds on contact. Suitable for use around artificial turf edges and seams. Works within hours and prevents regrowth for weeks.

Contains ammonium nonanoate, a safe alternative to glyphosate. Excellent for use on driveways, patios, and turf perimeters. Easy-to-use trigger sprayer included.

Avoid overspray on decorative plants. Do not use before rainfall. Protective gloves recommended during application.

7. Bonide BurnOut Weed & Grass Killer

Bonide BurnOut uses clove oil and citric acid to quickly dry out weed foliage. It is ideal for artificial turf because it does not stain or damage synthetic materials.

Works best in full sunlight and warm temperatures. Offers natural, organic weed control with no residual toxicity. Safe around pets and children when dry.

Needs reapplication for deep-rooted weeds. Not rainproof—wait 24 hours before exposure to water. Shake well before use.

8. Natural Armor Weed & Grass Killer

Natural Armor is a strong natural herbicide containing vinegar, clove oil, and other plant-based ingredients. Effective against over 250 types of weeds. Safe for artificial grass and non-toxic.

Convenient ready-to-use formula. No glyphosate or harsh chemicals. Fast results in less than 24 hours.

Repeat applications may be required. Avoid windy days to prevent drift. Store away from direct sunlight.

9. Avenger Organics Weed Killer

Avenger uses citrus oil to dissolve the cuticle of the plant, making it shrivel within hours. It’s OMRI-listed and safe for use near artificial turf and hardscapes.

Non-selective but does not affect synthetic surfaces. Biodegradable and leaves no harmful residue. Best for routine spot control.

Reapply as needed for stubborn weeds. Do not mix with other chemicals. Wear gloves when handling.

10. Espoma Organic Weed Preventer

This corn gluten meal-based product prevents new weeds from sprouting. It’s a pre-emergent herbicide and fertilizer combined, suitable for turf surroundings and seams.

Best used early in the season before weed emergence. Safe and natural solution with no environmental harm. Strengthens soil around turf installations.

Not for use on existing weeds. Use in dry conditions for maximum effectiveness. Water in after application.

7 Buyer’s Tips for Choosing the Best Weed Killer for Artificial Turf

• Ensure the product is turf-safe and non-staining.
• Prefer contact herbicides for quick results.
• Use pre-emergent herbicides for long-term prevention.
• Look for organic or natural options around pets and children.
• Check compatibility with nearby real plants.
• Read application instructions thoroughly.
• Store properly and apply in optimal weather conditions.

7 Frequently Asked Questions (FAQs)

1. Can weeds grow through artificial turf? Yes, especially along seams, edges, and if a weed barrier isn’t used properly.
2. Are herbicides safe on synthetic turf? Many herbicides are safe if used as directed. Avoid oil-based and corrosive formulas.
3. What’s the best way to apply weed killer? Spot spraying is most effective on artificial turf to minimize product waste and damage.
4. Should I use pre-emergent weed control? Yes, pre-emergents help stop new weeds before they start.
5. Will vinegar hurt artificial grass? No, but it can affect nearby plants. Apply carefully and rinse off excess.
6. Can I pull weeds instead of spraying? Yes, manual removal is effective for isolated cases but labor-intensive.
7. How do I prevent weeds long-term? Use landscape fabric under turf and maintain regular applications of pre-emergents.

Conclusion

Keeping artificial turf weed-free requires a combination of prevention and treatment. The best weed killers for artificial turf are those that eliminate existing weeds without damaging the turf’s structure. Organic and natural options are great for safe and eco-friendly maintenance. Pairing pre-emergent and contact herbicides ensures long-term control. With the right products and techniques, you can enjoy a pristine synthetic lawn all year round.