Patio Magic Patio Cleaner Concentrate - 2.5L

Patio Magic!® Patio Cleaner Concentrate 2.5L is the no-scrub, no-pressure-washing way to remove green algae, moss and lichen from patios, driveways and paths. Simply dilute, apply and leave it to work, there's no rinsing, no scrubbing and no jet-washing required. This 2.5L bottle makes up to 85m² of ready-to-use solution once diluted, making it a great, affordable choice for smaller patios, paths, or a first try of the Patio Magic range.

Key features

• Removes green algae, moss and lichen from all outdoor hard surfaces
• No scrubbing or pressure washing needed, just apply and leave it to work
• Visible results in 2-4 days, with results lasting for months
• Contains benzalkonium chloride, the same active ingredient used in the full Patio Magic range
• Concentrate makes up to 85m² of diluted solution, ideal for smaller patios and paths
• Safe for pets and children once the treated area is completely dry

How to use Patio Magic 2.5L Concentrate

1. Choose your dilution. For normal moss and algae build-up, dilute 1 part Patio Magic to 4 parts water. For light, early-stage growth, you can dilute it further to 1 part Patio Magic to 9 parts water.
2. Prepare the surface. Sweep away loose debris and leaves. Apply to a dry surface, ideally when no rain is forecast for at least 5-6 hours.
3. Apply evenly. Use a watering can with a rose, a garden sprayer, or a pump sprayer to cover the surface evenly, roughly 1 litre of diluted solution per 3-7m².
4. Leave it to work. Don't scrub or rinse. Patio Magic breaks down naturally on the surface, no wash-off is needed.
5. Keep pets and children off the area until it has dried completely, this typically takes 5-6 hours depending on the weather.
6. Watch for results. Green algae and mould are typically visibly reduced within 2-4 days. Heavier black mould or lichen may take a little longer and can leave some residual staining even once killed off.

Frequently asked questions

How much area will this bottle cover?

The 2.5L concentrate makes up to 85m² of diluted, ready-to-use solution, roughly enough for an average-sized patio or garden path. If you've got a larger driveway or several areas to treat, our 5L concentrate covers up to 170m² and works out more economical per square metre.

Do I have to wash it off afterwards?

No. Patio Magic is a no-rinse formula, once applied, simply leave it on the surface to work. There's no need to scrub or hose it down afterwards.

How long does it take to work?

Most green algae and mould is visibly reduced within 2-4 days. Full results, particularly on heavier moss or lichen, can take one to two weeks depending on the weather and how established the growth is.

Is it safe for my dog or cat?

Yes, once the treated area has dried completely. Keep pets off the area while it's being applied and until it's fully dry, which typically takes 5-6 hours.

Is it safe to use near my plants?

Patio Magic is formulated for hard surfaces rather than plants. Try to avoid direct overspray onto flower beds or borders, and if any does land on nearby plants, flush the area with clean water as a precaution.

Does it kill weeds or grass?

Patio Magic is formulated to remove algae, moss and lichen from hard surfaces, it isn't sold as a dedicated weedkiller. For weeds growing up through paving cracks, a product like Doff Knockdown Path & Patio Weedkiller is designed specifically for that job.

How do I mix and dilute the concentrate?

Mix 1 part Patio Magic with 4 parts water for normal moss and algae, or 1 part Patio Magic to 9 parts water for lighter growth. Mix in a clean watering can or sprayer and apply straight away.

Technical & safety information

Patio Magic!® is manufactured by Evergreen Garden Care UK Ltd. For full application instructions and safety information, refer to the official documents below:

• Safety Data Sheet (SDS) - Patio Magic!®
• Product Label & Directions For Use - Patio Magic!®

Active ingredient: benzalkonium chloride. Causes skin irritation and serious eye damage in concentrate form, wear gloves and eye protection when handling and diluting. Very toxic to aquatic life, avoid run-off into ponds, streams or drains. Always read the full label before use.