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UK Manufactured
Pet & Child Safe
FREE UK shipping on orders over £100*
family run business
UK Manufactured
Pet & Child Safe
FREE UK shipping on orders over £100*
Refresh your outdoor space with GreenBlade Winter Guard, a concentrated garden surface cleaner and algae stain remover for suitable patios, decking, fences, pergolas, garden furniture and artificial grass. It tackles green film and organic staining, controls mould, algae and lichen, and helps inhibit regrowth.
The 5L concentrate dilutes 1 part product to 5 parts water and covers up to 500m² of hard surfaces or 200m² of artificial grass, depending on weathering and contamination. Apply evenly and leave to work — no rinsing required. Woodland Walk fragrance. Keep people and pets away until fully dry.
Check the surface and conditions. Read the Winter Guard label. Confirm that the material and finish are suitable and that conditions meet the application instructions.
Prepare the area. Clear away loose leaves, debris and pet waste. Gently brush artificial grass fibres upright where applicable.
Shake the bottle. Shake Winter Guard well before measuring the concentrate.
Dilute with water. Mix one part Winter Guard with five parts water.
| Winter Guard concentrate | Water to add | Prepared solution |
|---|---|---|
| 100ml | 500ml | 600ml |
| 500ml | 2.5L | 3L |
| 1L | 5L | 6L |
Patch test. Apply the diluted solution to an inconspicuous area of each material or finish being treated. Check compatibility before wider application.
Apply evenly. Use a suitable pump sprayer to distribute the diluted solution over the compatible patio, decking, fencing, furniture or artificial grass. Follow the label’s application guidance.
Leave to work and dry. No rinsing is required. Keep people and pets away until fully dry. Allow at least 15 minutes, and longer whenever the surface remains wet.
Continue maintenance. Remove new leaves and debris as they collect. Follow the label’s guidance for repeat applications and spot treatments.
What is GreenBlade Winter Guard used for?
GreenBlade Winter Guard is a concentrated outdoor algae stain remover and garden surface cleaner. It treats green film and organic staining on suitable patios, decking, fences, pergolas, garden furniture and artificial grass. Its formula controls mould, algae and lichen and helps inhibit regrowth.
What cleaner removes algae stains from garden surfaces?
Choose a cleaner intended for algae stains and compatible with the surface you are treating. GreenBlade Winter Guard is designed for suitable garden surfaces including patios, decking, fencing and artificial grass. Dilute and apply according to the label, and patch test before wider use.
Can I use Winter Guard to remove algae stains from my patio?
Yes. Winter Guard treats algae stains and green film on suitable patios and paving. Check compatibility with the material and finish, clear loose debris and test an inconspicuous area before wider application.
Can Winter Guard clean green algae stains from decking?
Winter Guard can be used on suitable decking affected by algae stains and green film. Check the product label and your decking manufacturer’s care instructions, particularly where a coating or finish is present. Always patch test first.
Can I use Winter Guard on fences and pergolas?
Winter Guard can treat suitable fencing and pergolas affected by algae stains and green film. Check compatibility with the material and any paint, stain or protective finish, and test an inconspicuous area before treating more widely.
Does Winter Guard work on artificial grass?
Yes. Winter Guard treats algae stains and green film on artificial grass. Remove loose leaves and debris, gently brush the fibres upright and apply the diluted treatment evenly, following the label.
Can I use Winter Guard on garden furniture?
Winter Guard can be used on suitable garden furniture affected by green film and organic staining. Check compatibility with the material and finish, follow the furniture manufacturer’s care instructions and patch test before use.
Does Winter Guard control mould and lichen?
Winter Guard’s formula controls mould, algae and lichen alongside treating algae stains and green film. Use it according to the label and follow the guidance for maintenance and repeat treatments.
Does Winter Guard help prevent algae regrowth?
Winter Guard helps inhibit regrowth. Regular maintenance, removing loose debris and using spot treatments as directed also help manage returning build-up.
How do I dilute Winter Guard?
Mix one part Winter Guard with five parts water. For example, 500ml of concentrate plus 2.5 litres of water makes 3 litres of prepared solution. Shake the bottle before measuring and follow the label’s mixing instructions.
How much garden surface can a 5L bottle cover?
One 5L bottle covers up to 500m² of hard surfaces or up to 200m² of artificial grass. Actual coverage varies with weathering and contamination. These are alternative maximum coverage figures for different surface types.
Do I need to rinse after using Winter Guard?
No rinsing is required. Apply the diluted treatment evenly and leave it to work and dry, following the label.
How long after treatment can children and pets use the garden?
Keep children and pets away until treated surfaces are fully dry and any additional label restrictions have been met. Allow at least 15 minutes, and longer whenever drying takes more time.
When should I apply Winter Guard?
Apply before winter as part of your garden preparation, following the label’s weather and surface conditions. Continue regular maintenance and carry out spot treatments as directed.
How often should I use Winter Guard?
Follow the label’s guidance for repeat applications. Inspect your garden regularly, clear debris and use spot treatments as directed to help manage returning build-up.
What fragrance does Winter Guard have?
Winter Guard has a Woodland Walk fragrance.
One treatment for a cleaner garden
Green film across the patio. Algae stains on the decking. Build-up along fences and around the edges of your artificial lawn. GreenBlade Winter Guard brings these outdoor cleaning jobs together in one concentrated garden treatment.
Designed for whole-garden surface cleaning, Winter Guard tackles algae stains, green film and organic staining on suitable patios, decking, fencing, pergolas, garden furniture and artificial grass. Its formula controls mould, algae and lichen and helps inhibit regrowth, supporting a cleaner-looking outdoor space.
Whether you are preparing your garden before winter or treating affected surfaces in line with the label, Winter Guard makes it easier to include several areas of your garden in one maintenance routine.
Target algae stains and green film
Winter Guard is an outdoor algae stain remover for the build-up that affects the appearance of garden surfaces. It treats algae staining and green film while helping inhibit regrowth.
Use it as part of regular outdoor maintenance: clear loose debris, prepare the surface, apply the diluted treatment evenly and leave it to work. Continue inspecting treated areas and follow the label’s guidance for spot treatments and repeat applications.
Patio and paving cleaning
Use Winter Guard to treat algae stains and green film on suitable patios and paving. Include compatible paved paths and seating areas in your garden cleaning routine, checking the label and the material manufacturer’s care guidance before treatment.
Clear leaves and loose debris first, then test an inconspicuous area before applying more widely.
Decking cleaning
Winter Guard can be used on suitable decking affected by algae stains and green film. It provides a concentrated treatment that you dilute before application.
Check compatibility with your decking material and finish. Follow the decking manufacturer’s care guidance as well as the Winter Guard label, and patch test before wider use.
Fence and pergola cleaning
Garden cleaning includes the surfaces around your outdoor space as well as those underfoot. Winter Guard treats suitable fencing and pergolas, helping tackle algae staining and green film as part of your seasonal maintenance routine.
Check compatibility carefully on painted, stained or otherwise treated surfaces, and test a small inconspicuous area first.
Artificial grass cleaning
Winter Guard also treats algae stains and green film on artificial grass. Remove leaves, pet waste and other loose debris, gently brush the fibres upright and apply the diluted solution evenly according to the label.
This makes artificial grass one part of a broader garden cleaning routine, alongside your compatible patio, decking and fencing.
Garden furniture cleaning
Winter Guard can be used on suitable garden furniture affected by green film and organic staining. Check that the material and finish are compatible, follow the furniture manufacturer’s cleaning advice and patch test before treatment.
Concentrated coverage from one 5L bottle
Winter Guard is supplied as a 5L concentrate. Dilute one part Winter Guard with five parts water before use.
A full bottle makes 30 litres of prepared solution: 5 litres of concentrate plus 25 litres of water.
One 5L bottle covers:
These are alternative maximum coverage figures for different surface types. Actual coverage varies with weathering and contamination. Plan the quantity you need around the surfaces you are treating and their condition.
Apply and leave to work
Shake the bottle, measure the dilution and apply evenly using a suitable pump sprayer. No rinsing is required, so the treatment can be left in place to work.
Winter Guard has a Woodland Walk fragrance.
Keep people and pets away until the treated surfaces are fully dry. Allow at least 15 minutes, and longer whenever conditions slow drying. Follow any additional access restrictions on the label.
Make winter garden maintenance easier
Apply before winter as part of your garden preparation, following the label’s application conditions. Continue clearing fallen leaves and loose debris, inspecting surfaces and carrying out spot treatments as directed.
Winter Guard helps inhibit regrowth, while regular maintenance helps manage returning build-up.
Bring your patio, decking, fencing and artificial lawn into one cleaning routine with GreenBlade Winter Guard.
Read the Winter Guard label before use and follow all manufacturer instructions.
| Weight | 5 kg |
|---|---|
| Pack Size | Single, Dual Pack, Quad Pack |
All reviews![]()
AmazonVerified
Working well in initial testsWorking well in initial tests This is a little on the pricey side for the amount you get but it does dilute quite a lot so goes a reasonable way.Easy to use by just adding it to water and pouring it over with a watering can.It smells nice but that doesn't last too long or get overpowering which I feel is a good thing.It does seem to lean although my major test is yet to come at a holiday home so should there be any issues I will update this review.Seems good quality and cleans well so hoping for good results when I treat a much larger area.Verified
AstroTurf cleaner Minty scented. Easy to use and dilute to desired strength.The upper end of the price for the quantity you receive - I diluted this with a 1 part liquid 5 parts water and I could smell the fragrance for a few hours but with the hot weather the urine smells promptly came back. Have used almost the whole bottle over two applications so it's quite expensive but for smaller areas may last longerVerified
GreenBlade Green Guard Artificial Grass Cleaner & Odour Remover, 1L 1 Pack My ExperienceRight, morning everyone! Now, if you keep dogs, you know the struggle in winter or when it’s absolutely tipping it down outside—the ruddy dogs only want to go out if you give them a gentle little nudge on the end of your foot (only joking, of course, just a little budge with the boot!). Because of that, I set up a dedicated patch of astroturf for them near the house so they can do their business quickly without getting bogged down in the mud. It works smashingly well, but the smell gets right on your nerves!And I’ve got to say, this stuff is proper job!What I really like is the thick gel consistency. Unlike all sorts of other watery cleaners I’ve used in the past that just wash away in a flash, this gel actually feels like it’s clinging right to the "blades" of grass and backing so the bio-enzymes can get to work. I’ve used it on the main path as well as the astroturf patch, and it works equally well on both. It definitely removes the lingering wee smell completely rather than just masking it, leaving behind a nice fresh Watermelon Breeze scent. Ideal bit of kit for keeping the yard smelling fresh!The ProductThe GreenBlade Green Guard Artificial Grass Cleaner & Odour Remover (1L Bottle). Made in the UK, featuring a thick probiotic bio-enzyme gel formula with a Watermelon Breeze fragrance. Specifically engineered to cling to artificial turf fibers on hard-standing bases (concrete, patios, decking) to eliminate dog urine and pet odors at the source. Safe for pets and children once dry.The Ideal User / Deal BreakerAn essential buy for dog owners, pet keepers, and homeowners who have artificial grass laid over hard surfaces like concrete or patios and need a thick cleaner that won't immediately drain away. The deal breaker is if you need a pre-attached hose-end spray bottle for a massive multi-acre field, as this concentrated gel requires manual dilution in a watering can or sprayer.SummaryA remarkably effective, thick probiotic gel cleaner that clings where it's needed and completely neutralises stubborn pet odours. It does a fantastic job keeping the dog patch and path fresh, keeps the yard setup running smoothly, and gets 5 stars from me!Star Rating: 5/5Verified
Fresh effective cleaner that removes odours from artificial grass This cleaner has a fresh scent and works well on artificial grass, especially in areas used by pets. It removes odours effectively and leaves the surface looking cleaner without residue.The area cover depends on what surface you have under the artificial grass, if it’s concrete it’s a much smaller ratio so doesn’t cover as much area. I have a small courtyard and had to buy another bottle to get the proper coverage. It is overall a helpful product for keeping artificial grass fresh.Verified
Very effective - nice smelling too I’m a recent convert to the world of artificial grass, having been inspired by a neighbour who got a patch for her dog to use. Our back garden is all stone flags and raised beds so it’s not welcoming for our little dog when she needs to answer a call of nature at short notice. In most cases our regular walks are enough for her needs, but occasionally she needs to go outside and it just won’t wait. Artificial grass is the answer to that problem and this cleaner is the solution to the problem that arises afterwards.It’s more than just a general cleaner that uses an anti-surfactant to remove dirt, although it does have that element. In this product there’s an enzymatic element that breaks down the stuff that causes odours: that detritus has attached itself to the inner pile of the artificial grass and as it decays it produces the odour. This cleaner helps to break that down rather than just trying to release it so it can be washed away.It really does work well and I’ve found it best to use it last thing at night and let it sit until morning. There’s a fresh odour that adds to the general feeling of cleanliness and makes the grass much more pleasant to be around.It’s not cheap so you’ll have to make up your own mind about whether it’s good value for money. I can say that it definitely works though, and perhaps that effectiveness is worth paying for.Verified
Really Handy for Keeping Our Artificial Grass Fresh. I bought this because we have artificial grass and, with having a dog, it can get a bit smelly, especially when the weather is warm. I wanted something that would help get rid of the smell without using anything too harsh.I've been really happy with this so far. It's a thick gel, so it doesn't just disappear into the grass as soon as you put it down. It's easy to spread around and doesn't make a huge mess while you're using it.The main reason I bought it was for the dog urine smell, and it has definitely helped. After using it, the grass smells much fresher and the usual doggy smell is noticeably reduced.I also like that it doesn't have that really strong chemical smell that you get with some outdoor cleaners. The 1-litre bottle is a good size too, and I think it should last me quite a while.I've also used a bit on the patio where the dog tends to walk after going outside, and it's been useful there as well.Overall, I'm really pleased with it. It's easy to use, doesn't smell harsh and has made a noticeable difference to keeping our artificial grass smelling fresh. It's definitely something I'll keep using, especially during the warmer months.Verified
Leaves a nice smell GreenBlade Active Max Artificial Grass Cleaner for Dogs is a useful solution for keeping artificial grass fresh, clean and more pleasant around pets. The bio-enzymatic formula is designed to tackle dog urine odours rather than simply covering them up, making it particularly suitable for areas that are regularly used by dogs. The Cool Mint scent leaves a fresh fragrance after application without being excessively overpowering.The 1L bottle provides a reasonable amount of cleaner, especially because it can be diluted at a 1:5 ratio. This makes it practical for treating larger areas of artificial grass while keeping usage economical. The cleaner is straightforward to incorporate into a regular garden cleaning routine and can help maintain a fresher-looking and better-smelling lawn.The product is especially convenient for households where artificial grass receives frequent use from dogs, as unpleasant smells can otherwise become noticeable during warmer weather. The mint fragrance gives the grass a clean, refreshed feel after treatment. Overall, GreenBlade Active Max combines odour control, a pleasant scent and a concentrated formula in a convenient 1L bottle, making it a practical artificial grass cleaner for dog owners looking to keep outdoor areas hygienic and fresh.Verified
Safe, UK-made gel for artificial grass and patios If you’ve ever spent a summer wondering if your garden is a dog loo in disguise, this GreenBlade Green Guard cleaner is a bit of a revelation for artificial grass and patios. I picked up the 1L bottle after trying a few “fresh scent” sprays that just left the lawn smelling like a perfumed kennel. This one’s a thick probiotic gel, which means it actually breaks down the source of the pong rather than just layering on a fragrance. The science bit is simple: good bacteria munch away at the nasties, so you’re left with genuinely neutral grass, not a chemical cloud.I used it neat on the worst patches (thanks, spaniel) and diluted for a general spruce-up. The instructions are a bit vague on ratios, so I played it by ear, but it worked well both ways. The lack of a strong scent after use was a surprise – it doesn’t leave your garden smelling like a lemon grove, but it does mean you know the odour’s actually gone, not just hidden. The 1L bottle covered my small lawn and a couple of high-traffic patio spots, but if you’ve got a big garden or a pack of dogs, you’ll probably need more than one bottle for a deep clean.What I hadn’t expected was how safe it felt to use – no gloves needed, and I didn’t worry about the kids or the dog rolling around straight after. It’s UK-made, which is a quiet reassurance if you’re fussy about what goes on your grass. The gel consistency means it clings to the blades rather than running straight off, but it does take a bit longer to rinse out of a watering can than a thin liquid. For anyone with a shared garden or a communal play area, it’s a relief to know you’re not leaving behind anything harsh or toxic.One thing to keep in mind: there’s no lingering “clean” smell, so if you’re after that just-mown fragrance, you’ll be disappointed. Also, the lack of detailed dilution guidance means you might use more than you need at first, which could get pricey if you’re treating a large area regularly. Cleaning up is easy – just a quick brush and rinse before applying – but the bottle does get a bit sticky if you’re not careful with the cap.For the price, it’s good value for small to medium lawns, especially if you’re fed up with chemical sprays that don’t actually solve the problem. If you’ve got a massive garden or want a strong scent, you might want to look elsewhere, but for most pet owners, this is a practical, genuinely effective fix. 4 stars – it does what it promises, is safe for the whole family, and finally lets you enjoy the garden again without holding your nose.Posted on Google![]()
Caroline Kennedy58 days agoTrustindex verifies that the original source of the review is Google.
Our artificial grass was looking a bit tired and we weren’t sure what to do with it as it’s in a commercial setting in our pub restaurant premises so has a lot of footfall, spilt food and drinks. My friend recommended giving Green Blade Cleanse a call and I’m so glad I did. They recommended using a product called cleanse and what can I say! It looks like it’s just been laid and it smells amazing.Verified
Brilliant product, fantastic results Fantastic product, smells incredible and works perfectly, artificial grass has come back to life and all pet smells have gone.Verified
Brilliant product!Brilliant product! This has made a huge difference to our artificial grass! We have a dog, and it was starting to hold onto those unpleasant urine smells, especially in warm weather. After using this, the odours were noticeably reduced and the grass smelled fresh again.The gel is easy to dilute and apply, and a little goes a long way. I also like that it's pet-friendly once used as directed, so I don't have to worry about letting my dog back out.A great product that actually does what it promises. If you have artificial grass and pets, it's definitely worth having on hand.Load more
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