If you've got green, black or mossy staining creeping across your patio, driveway or path, Patio Magic! is one of the simplest ways to sort it out without scrubbing on your hands and knees. But like any outdoor cleaner, getting the results you're after comes down to using it correctly. This guide walks through exactly how to use Patio Magic, from mixing the right dilution to applying it evenly, so you know precisely what to do before you even open the bottle.
Patio Magic! is made by Evergreen Garden Care UK Ltd, the same company behind Miracle-Gro and Levington, and it's formulated to tackle green algae, moss, lichen and green or black mould staining on hard outdoor surfaces. It isn't a weedkiller, so if your main problem is grass or weeds pushing up through paving cracks, it's worth pairing it with a dedicated product like Doff Knockdown Path & Patio Weedkiller rather than expecting Patio Magic to do that job too. For everything else - the slippery green film on a patio, the black speckling on a driveway, or moss creeping along a garden path - this is exactly what Patio Magic is designed for.
What You Need Before You Start
Patio Magic instructions are straightforward, but a bit of preparation makes the whole job easier. You'll need the product itself, and here it's worth knowing there are two ways to buy it. The concentrate, available in 5L or 2.5L bottles, needs diluting with water before use, while the Ready To Use Spray comes pre-mixed with a built-in trigger, so there's no measuring or mixing involved at all. If you're treating a large driveway or several areas around the garden, the concentrate works out more practical since one 5L bottle can cover up to 170m² once diluted.
Alongside the product, you'll want a watering can fitted with a rose, or a garden pump sprayer, for applying the diluted concentrate evenly. A stiff broom is useful for sweeping the surface beforehand, and it's sensible to wear gloves and eye protection when handling and diluting the concentrate, since it can cause skin irritation and serious eye damage before it's mixed with water.
How to Apply Patio Magic: Step-by-Step
Once you've got your equipment together, the actual process of how to apply Patio Magic follows the same handful of steps whether you're treating a small path or a full driveway. Here's how do you apply Patio Magic properly, from start to finish:
- Choose your dilution. If you're using the concentrate, mix 1 part product to 4 parts water for normal infestations of algae, moss or mould, or 1 part product to 9 parts water for lighter, early-stage staining. If you're using the Ready To Use Spray, skip this step entirely - it's ready to go straight from the bottle.
- Sweep the surface first. Clear away loose leaves, dirt and debris with a stiff broom. This isn't just tidying up - it lets the solution reach the algae, moss and mould directly rather than being absorbed by loose organic matter sitting on top.
- Check the surface is dry. Patio Magic needs to be applied to a dry surface, and ideally you want no rain forecast for the next 5-6 hours so the solution has time to work before it's washed away.
- Apply evenly. Using a watering can with a rose, a pump sprayer, or the RTU spray's built-in trigger, cover the surface evenly. As a rough guide, one litre of diluted solution covers around 3-7m², so it's worth working out roughly how much you'll need before you start rather than running out halfway across a driveway.
- Leave it to work - don't scrub or rinse. This is the step people most often get wrong. Patio Magic works over time, not on contact, so resist the urge to scrub the surface or hose it down afterwards. Just walk away and let it do its job.
- Keep children and pets off the area. Treated surfaces should stay off-limits until they're completely dry, which typically takes around 5-6 hours.
Applying Patio Magic to Different Surfaces
One of the reasons Patio Magic instructions work across so many parts of the garden is that the product is suited to a wide range of hard surfaces - patios, driveways, paths, block paving, garden walls, garden furniture, greenhouse glass and decking. The application method stays the same in each case, but it's worth spot-testing an inconspicuous area first, particularly on decking, natural stone, resin driveways, or any surface you're not fully confident about, before treating the whole area. This just confirms there's no unexpected reaction to the surface's finish or colour before you commit to the full job.
If you're working around flower beds, borders or pots, take a little extra care with your spraying technique to avoid direct overspray onto plants, and flush any accidental contact with clean water straightaway. The product is also very toxic to aquatic life, so avoid letting it run off into ponds, streams or drains - this matters most on sloped driveways or paths that lead directly towards water features or gullies.
What to Expect After Application
Patience is part of using Patio Magic correctly. Green algae and mould staining is usually visibly reduced within 2-4 days of treatment, which is often the quickest win you'll notice. Moss and lichen take longer to respond fully, typically needing 1-2 weeks before the full effect comes through, so don't judge the product too early if you're dealing with a heavily mossy path or shaded patio. Once it has worked, results tend to last several months, making it a reasonably low-maintenance way to keep hard surfaces looking clean through the year.
It's also worth knowing that Patio Magic works right through the year, though it acts more slowly in cold weather and frost. If you're treating a driveway or patio in the depths of winter, don't be surprised if it takes noticeably longer to show results than an application made in warmer months - the product hasn't failed, it's simply working at a slower pace in the cold.
Safety Tips to Keep in Mind
Patio Magic's active ingredient is benzalkonium chloride, present at around 5-10% w/w in the concentrate (the 2.5L bottle's label states 7.5% w/w, or 75g/L), along with a small amount of ethoxylated C9-11 alcohols. In its concentrated form, this can cause skin irritation and serious eye damage, so gloves and eye protection are sensible whenever you're handling or diluting the undiluted product. Once mixed and applied, keep children and pets off the treated surface until it's completely dry, which generally takes 5-6 hours. As mentioned above, the product is very toxic to aquatic life, so plan your application route to avoid runoff into ponds, streams or drains, and take care around any plants you'd like to keep unaffected.
Getting the Best Results
The difference between an average result and a genuinely clean-looking patio usually comes down to following these Patio Magic instructions closely rather than rushing the process. Sweep first, apply to a dry surface, use the correct dilution for how bad the staining is, spread it evenly rather than in patches, and then leave it alone to work. If you're tackling a large driveway or multiple areas of the garden in one go, browse the full Patio Magic collection to find the size and format that best suits the job ahead, whether that's the concentrate for bigger areas or the ready-to-use spray for quick, targeted treatments around furniture, walls and smaller patches of staining.
