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The UK’s Best Moss Killer for Driveways & Paths

This is our review of the best moss killer for driveways in 2024

Moss is a common problem for UK homeowners, especially during the winter and early spring, and it can be a real annoyance, especially if it takes over your driveway or path. Not only does it make walking difficult, but it’s also unsightly.

But, what’s the best way to eliminate mossy areas completely? While some natural products can tackle the problem, we recommend using a commercial moss killer.

During our 15+ years in the landscaping business, one of the most frequently asked questions that we field involves how to remove and prevent moss from ruining outdoor installations properly.

There are countless remedies that people tend to hear about and even more myths surrounding how to prevent it from growing in the first place. We’re here to get to the bottom of this, once and for all, and reveal the best methods and products that we use to tackle moss daily!

In this article, we’ll be reviewing:

If you’re looking for a great moss killer, then look no further – we’ve got you covered. In this blog post, we’ll take a look at the best moss killers available in the UK, so you can get your driveway or path looking clean again.

Let’s get started!

Our Best Moss Killers for Driveways

There are several varieties of moss killer on the market; some are great at treating small areas with little hassle, others are more heavy-duty solutions to ongoing weed issues. Below we’ve compiled some of our favourite moss killers and outlined the most appropriate uses for each.

#1. SmartSeal Moss Remover

Easily the best moss remover for driveways as far as we’re concerned, Smartseal moss remover is super easy to apply with a watering can or garden sprayer, and the 5L bottle will cover around 100-125 sqm of moss affected surface without any hassle.

We’ve found this moss killer to be incredibly useful for larger landscaping jobs, as there’s no need for prior cleaning or scrubbing; just spray the product onto a dry surface and leave it to do its job.

At a 1 part product to 3 parts water ratio, we’ve seen even the thickest areas of excessive moss growth come loose and die within three days.

SmartSeal Moss Remover

The non-toxic compounds mean you don’t have to worry about damaging plant life when spraying garden paths or patios, and the protective coating left after the moss removal makes treating moss in the future a simple task.

This will always be a good buy for killing moss on your hard surfaces.


#2. Patio Magic and Sprayer Bundle

We particularly appreciate the inclusion of a dedicated pressure sprayer with this ready to use product. The battery-powered backpack sprayer makes light work of the application process. You don’t even have to worry about precision when spraying down that stubborn moss, thanks to its biodegradable formula.

Patio Magic and Sprayer Bundle

The 7L bottle can easily treat up to 150 sqm of space, and we’ve found Patio Magic to be equally as effective at removing nasties from block paving, natural stone, wooden decking and PVC.

Patio Magic has a non-staining formula, unlike some other moss killers, so you’re unlikely to find any nasty discolouration once the sprayed area has been treated.


#3. Resolva Moss Killer Ready to Use, 3L

We think this is one of the best moss killer products for use on permeable surfaces and block paving. The specially designed formula will seep into porous stone and kill any moss, algae or other organic pests at the root. We’ve seen patios caked in green mould look good as new in as little as 24 hours with just one coating of this moss and algae killer.

Resolva 20300339 Moss Killer Ready to Use, 3L

The small product size means that you’ll be either diluting this down or purchasing a few bottles to cover an average 30sqm patio. Still, it can be worth it for stubborn moss as the pelargonic acid is particularly fast-acting.

However, the acidic content means that this product can only be applied four times a year, with around two months between uses to protect your soil and other plant life.


#4. Wet & Forget – Moss Mould Lichen & Algae Remover

We’ve found Wet & Forget to be one of the most cost-effective solutions to weed and moss control, with a single 5L bottle that can produce up to 30L of effective moss killer. We’ve seen great results with a 5:1 ratio and have easily covered up to 300sqm of moss-affected surfaces.

Wet & Forget – Moss Mould Lichen & Algae Remover

It’s straightforward to apply, just spray down the affected area and leave moss killer to do its thing for a couple of days. We’ve left this product to work for a couple of days in unexpected, light rain and still come back to dead moss and algae after the fact.

It’s effectively PH neutral (PH8) and completely biodegradable, so the rest of your garden will be perfectly safe should some of this product stray from the affected areas. A tremendous all-around product for removing moss from any hard surfaces.


#5. Jarder Spray & Leave 4 x 5 Litre

With a higher concentration of active ingredients than any other moss and weed killer that we’ve come across, Jarder spray is our go-to for excessive moss growth and particularly stubborn patches of moss, mould, lichen and weeds.

Jarder Spray & Leave 4 x 5 Litre

This stuff will obliterate any garden nuisance with ease at a high concentration, but we’ve also seen great results in diluting up to 10 parts water to 1 part moss killer.

It’s excellent at treating PVC and guttering without leaving any undesirable discolouration and will clean up moss-covered hard surfaces in as little as 24 hours.


#6. Pro-Kleen MY16 Patio Cleaner

Pro-Kleen is the most heavy-duty moss removal formula that we use, with powerful ingredients that can cause skin irritation if mishandled. But, provided that you handle this moss killer with care, it’s great at removing heavy infestations and algae from any hard surface.

Pro-Kleen MY16 Patio Cleaner

We suggest applying Pro-Kleen neat to particularly stubborn areas of green, but it can also be effective when diluted and quickly treat more extensive areas of outdoor space. Keep this product away from any ponds or water features, though, as the chemicals present are particularly toxic to aquatic life.

This product’s intensive cleaning is excellent at reviving patios and decking to their original colour. Once the moss killer has dried, it’s perfectly safe for wildlife, humans and animals.


#7. Algiclear Pro 25 Litre 

We often use Algiclear to treat particularly large areas of moss, algae and lichen, as this ready to use product can cover up to 300sqm right out of the container.

We particularly like the moss control formula, as the active polymers encapsulate any moss spores and weed seeds that may be present under the surface, drying them out and killing pests at the root.

Algiclear Pro 25 Litre

We recommend this moss killer to anybody looking to protect their hard surfaces from regrowth in the future, as the protective coating left after application can prevent new spores and seeds from taking root for up to 9 months.

Just apply the moss killer to the entirety of your hard surface with a garden sprayer, and make sure to allow for 12 hours of dry weather for the protective layer to set.


How to Choose the Best Moss Killer Products

Coverage

Top of the agenda when selecting the most appropriate moss killer should be the expected coverage of your chosen product. Most moss killers can be diluted to produce a larger quantity of usable product, but if the concentrated killer is relatively weak, to begin with, you may end up with a functionally useless formula.

Generally speaking, 1L of your average solution should be enough to treat a 10sqm hard surface. If your problem is light, diluting this moss killer should be perfectly fine, but if you have stubborn moss issues, you may want to look into a larger-sized, more concentrated killer.

Pet/Child Safe Chemicals

If your household includes children and animals, or your garden is home to a wide array of wildlife, you should consider looking for a green moss killer with a neutral PH value and an environmentally friendly formula.

If you have a garden full of flowers and grass, you should look for a selective herbicide moss killer. These products have formulas specifically designed to only eliminate moss and are not harmful to any other variety of plant life.

Most moss killers will be non-toxic once they’ve had time to dry on your outdoor surface. Look for products with no toxic chemicals or bleach in the ingredients list if you’re expecting children and animals to be in the garden when the moss killer is applied.

Protection Against Regrowth

To truly get the most out of a moss killer, you should look for a product that can guarantee some degree of protection against the regrowth of moss and other weeds in the future.

To avoid the endless cycle of purchasing and applying different products, search out a moss killer with an active polymer formula that can act as a protective coating for your outdoor surface.

Checking out the online review sections for the moss killers you’re looking at is a great way of determining how effective these protective qualities really are. Look for customer reviews with pictures, as this can provide a visual representation of the effectiveness of each moss killer.

Ease-Of-Use

Treating a large area can be incredibly laborious if you’re applying the product with a manual spray bottle. Some moss killers will come with an included garden sprayer, making the application process much simpler and less taxing to fit in around your other garden chores.

Some moss killers are also ready to use straight out of the container, so you won’t have to worry about mixing the chemicals with water and finding a ratio that works. These products are much simpler to use and negate the risk of skin irritation and burns that mixing the chemical may present.

Some Natural Alternatives to Kill Moss

a mix of cleaning solutions and supplies

Vinegar

Vinegar is an excellent alternative to dedicated moss killers and can be highly effective if used properly. Both white vinegar and apple cider vinegar will work and can be applied directly to the moss without any prior mixing with other ingredients.

Simply apply vinegar to the root, and leave the substance to soak for several hours until the plant dries out and turns orange, then pull up the moss or scrub the surface with a stiff brush.

Baking Soda

Much like vinegar, baking soda can effectively remove any unwanted moss by drying out the plant to kill it from the root. Either mix a few tablespoons of baking soda and tap water in a spray bottle or apply dry baking soda directly to the affected areas.

Leave the baking soda for a few hours to absorb the moisture from the moss, and either pull out the dead plants or scrub the area with a stiff brush to clean your patio or path.

Boiling Water

The most environmentally friendly way to remove any unwanted weeds and organic pests from your outdoor surfaces is to use boiling water to kill them at the root. Simply pour boiling water over the affected area, wait for a few minutes, then sweep the area with a stiff brush to uproot the unwanted weeds and plants.

Bleach

Bleach is a powerful cleaning agent often used for many outdoor cleaning projects, but it can also be used for significant effect as a moss, weed and algae remover. Dilute some bleach in water and apply the solution directly to the affected area, allow for around 3o minutes for the bleach to kill the plants at the root, then remove the dead weeds with a stiff brush.

Dish Soap

Regular old dish soap makes a great homemade moss killer by simply mixing the substance with water at a ratio of 15ml soap to 1l of water. Decant your solution into a spray bottle for easy application and spray down the areas affected by moss growth.

Make sure that the solution finds its way to the root, and avoid applying this moss killer in the rain, as any rainfall will render your efforts useless as the soap washes away. Allow the soap to dry out the moss and remove the dead plants once they begin to turn orange.

Hydrated Lime

Another handy way to kill moss at the root is to apply a little hydrated lime to the moss affected areas of your outdoor surface. Either mix the substance with a bit of water to produce an easy to apply moss killer spray or sprinkle a little powder directly onto the area.

The hydrated lime will suck any moisture out of the plant and kill the moss directly at the root. Once the colour turns orange or brown, simply pull up the dead plants or scrub the area with a stiff brush.

Pressure Washing

The high-pressure jet of your pressure washer is a great tool for eliminating moss that has burrowed its way deep into your patio or garden path. This method is excellent at protecting the surrounding grass, as it won’t damage any plants that you don’t directly aim the washer at.

You should always be careful when using a jet washer on outdoor surfaces, as the jet can damage the surface of natural stone or remove the jointing sand from block paving. Always aim the nozzle at a 45 degree angle, and direct the jet away from any buildings, cars or people as you work.

This short video shows how to remove moss naturally.

How to Prevent Future Moss Growth

Limit water flow

Moss loves to grow in damp areas that are often exposed to rain and experience very little sunlight. Suppose a drainage channel runs over your outdoor space, or there is usually standing water on the surface. In that case, you should consider making efforts to divert the flow of water and perhaps install a gradient to allow excess water to run off.

Sweep regularly

Moss spores are incredibly small and are often mixed in with the loose soil and other debris that you may find on your driveway or garden path. If left to their own devices, the spores will attach themselves to the cracks and crevices in your outdoor surface and take root. So, regularly sweeping the area can be incredibly effective at preventing it from growing in the first place.

Increase your soil’s PH

The most common cause of moss infestations is the presence overly acidic soil that prevents other forms of plant life, like grass, from adequately growing. Test kits can be purchased that measure the PH of your soil, but a simple mixture of water and baking soda can also be used.

Take a sample of your soil, add a 1/2 cup of water, mix, then add a 1/2 cup of baking soda. If the mixture bubbles or fizzes, your soil is acidic. Adding an alkaline substance, like lime, to your soil can help to neutralise its PH and prevent future growth.

Use iron sulphate on grass.

Sprinkling iron sulphate onto your lawn, or spraying a diluted iron sulphate solution onto the area with a garden sprayer, can help to treat any existing problem and prevent it from growing back in the future. Iron sulphate will introduce nutrients into the soil that can help grass grow and to avoid moss from taking root.

Some other uses for iron sulphate in the garden?

Copper wire on rooftops

Though this is definitely a more intensive method of preventing moss growth, it can be a particularly effective method of keeping roof tiles moss free. By installing lengths of copper wire across the surface of your roof and leaving gaps of 3 metres between each strip, you can prevent growth as the copper will emit ions when it rains that will destroy spores on contact and prevent regrowth.

Sealing driveways and paths

Moss spores tend to grow freely on drives and garden paths as there are often many cracks and holes that are perfect for the spores to take root in. Applying suitable driveway coating to your outdoor surface will prevent moss and weeds from taking root and protect your surface from common stains, UV damage, and discolouration.

FAQ’s

How Do You Remove Moss from Concrete Permanently?

To get rid of any unwanted moss from your concrete permanently, you will need to first remove all the moss with your chosen cleaning agent. You can use a homemade solution, or a dedicated moss killer, just avoid any rainfall and make sure to leave the sprayed area for 12-24 hours so that the solution has time to work.

Once the plants have died, remove them by hand, with a jet washer or with a stiff brush, and allow the area to completely dry. Sweep the concrete free from any dirt and debris, and apply an appropriate sealer to the surface that will fill any cracks in the concrete and protect the area from future plant growth.

How Do I Stop Moss Growing on My Block Paving?

Moss will grow freely on any hard surfaces that have cracks and crevices for the spores to take root in. The best way to prevent moss from growing is to remove the opportunity for it to take root.

By applying a layer of sealant to your block paving, you can prevent moss and weeds from growing and protect the surface from wear and damage.

Make sure to properly clean and sweep your block paving, allow the area to fully dry, and then apply your sealer. Regularly sweep your block paving, even after it has been sealed, to keep the surface free from any dirt and soil that may carry moss spores and weed seeds.

Will a Pressure Washer Remove Moss from Concrete?

Pressure washers are a great way of eliminating moss from concrete without risking damage to any surrounding plant life with the use of chemicals or cleaning agents. The only issue with using a jet washer, is that the high pressure jet can be damaging to the surface of the concrete itself.

When using pressure washers on concrete, always angle the nozzle at 45 degrees to minimise the pressure on the surface. Always wash in a direction away from any buildings, vehicles or people.

Conclusion

moss growing on block paving

Moss can be a tricky problem to tackle, but the good news is that there are plenty of gardening products that will get rid of moss and algae for good. With the best moss treatment for driveways and prevention techniques, you should have no trouble keeping your outside space looking its best.

Getting rid of moss algae and lichens can also be done with natural products like vinegar and lemon which slowly kill the spores by changing the PH levels

If you need more advice on how to keep your block paving or driveways in pristine condition, check out our other guides.