Artificial grass is supposed to be low-maintenance — so when weeds start creeping through your pristine lawn, it feels like a cruel joke. The good news? You can treat weeds safely without ruining your turf. The trick is knowing what products are safe, how to apply them properly, and what mistakes could cause lasting damage.
If you’re just starting out with upkeep, our full Artificial Grass Maintenance Guide walks you through everything from daily brushing to long-term care — and this blog focuses specifically on weed control.
Jump to:
- Is Weed Killer Safe for Artificial Grass?
- What Types of Weed Killer Can You Use?
- Homemade vs. Shop-Bought Solutions
- How to Apply Weed Killer Safely
- What to Avoid at All Costs
- Weed Prevention Tips for Fake Lawns
- FAQs
Is Weed Killer Safe for Artificial Grass?
In short: yes – but only if you use the right kind. Many store-bought weed killers are designed for natural lawns and contain strong chemicals that can damage synthetic turf. But there are pet-safe, water-based options that work well without harming your lawn’s fibres or backing.
AGAG Pro Tip: Always patch test any new product first. If it discolours the turf, it’s a no-go.
What Types of Weed Killer Can You Use?
Here’s a quick-reference guide to what’s safe and what’s risky when it comes to artificial grass:
| Product Type | Safe for Turf? | Notes |
|---|---|---|
| Acetic acid (vinegar) | ✅ Yes | Natural weed killer that dries out leaves and stems |
| Water-based herbicides | ✅ Yes | Choose turf-safe and pet-friendly options |
| Glyphosate-based weed killers (e.g. RoundUp) | ❌ No | Damages turf fibres and backing – avoid at all costs |
| Salt-based solutions | ⚠️ Use with care | Can damage sub-base or seep into nearby areas |
| Boiling water | ⚠️ Avoid | Risk of melting or warping turf – not worth it |
Homemade vs. Shop-Bought Solutions
If you’re weighing up DIY options like vinegar or salt vs. off-the-shelf products, here’s what to know:
- Homemade: Vinegar + water (50/50) is safe and surprisingly effective for small patches
- Shop-bought: Look for turf-safe, pet-safe formulas labelled as water-based
- Avoid: Any concentrate that doesn’t list synthetic turf as compatible
How to Apply Weed Killer Safely
Once you’ve picked a safe product, applying it properly is key. Here’s how to get it right:
- Pick a dry day with no rain forecast for 24 hours
- Brush the lawn to remove leaves, dirt and debris
- Spray directly on weeds – avoid oversaturating
- Keep the product off seams, joins and edge trims
- Allow to dry fully before letting pets or kids back on
Note: For large or persistent patches, you may need a second application a week later.
What to Avoid at All Costs
Even if weeds are driving you mad, steer clear of these turf-wrecking tactics:
- Bleach – corrodes fibres and discolours turf
- High-pressure jet washers – can lift seams and damage backing
- Weed burners – will melt turf instantly
- Salt overload – ruins drainage and kills nearby soil health
Weed Prevention Tips for Fake Lawns
Once you’ve cleared the weeds, here’s how to stop them returning:
- Brush weekly to lift pile and remove airborne seeds
- Rinse monthly to remove moss, soil or bird droppings
- Remove organic debris ASAP (leaves, grass clippings)
- Install a weed membrane (if not already present)
- Book an annual professional clean for full peace of mind
FAQs
Still got questions about killing weeds on artificial grass? Here are the most common ones we hear:
| Question | Answer |
|---|---|
| Can I use RoundUp? | No – glyphosate is too harsh and can damage the turf backing |
| Will vinegar kill weeds? | Yes – dilute 1:1 with water and apply directly |
| Is salt safe? | Not really – it can damage the sub-base and surrounding areas |
| Can weed killer stain the turf? | Yes – avoid coloured or oil-based products |
| How often should I apply it? | 1–2 times a year is usually enough with good turf care |
Want the weeds gone for good? Let our team handle it.
