What Kills Moss on a Driveway

Moss can quickly take over a driveway, especially in shaded or damp areas. Not only does it make the surface look untidy, but it can also create slippery patches that are unsafe to walk on. Removing moss properly — and preventing it from coming back — is key to keeping your driveway in good condition.

The advice in this guide is informed by driveway cleaning and maintenance specialists. If you’re considering resurfacing for a lower-maintenance option, our page on resin bound driveway installation explains why this surface is less prone to moss growth.

Key Takeaways

• Specialist moss killers are the most effective long-term solution.

• Regular cleaning reduces the chance of moss returning.

• Avoid harsh tools that can damage the surface.

• Prevention is easier than repeated removal.

Why Moss Grows on Driveways

Moss thrives in damp, shaded environments. Driveways under trees, in north-facing positions, or with poor drainage are more likely to develop moss. Porous materials like block paving and concrete can hold moisture, giving moss an ideal place to grow.

Best Products to Kill Moss

Moss and Algae Removers

These are designed specifically for outdoor surfaces and work by killing moss at the roots. Many are safe for tarmac, resin, and concrete, but always check the label before use.

Biocidal Washes

Biocides kill moss, algae, and other organic growth and can provide longer-lasting results. They often keep working for weeks after application.

Eco-Friendly Alternatives

Some products use natural ingredients to kill moss without harming plants or pets. While safer for the environment, they may need more frequent applications.

DIY Methods

While specialist products are best, some DIY options can help:

• White vinegar: Dilute with water, apply to moss, leave for 15–20 minutes, then scrub and rinse.

• Baking soda: Sprinkle directly onto moss in dry weather, leave overnight, then brush away.

These methods may be less effective for large infestations.

Safe Removal Techniques

Avoid using wire brushes or scraping tools on resin or tarmac, as they can damage the surface. Instead, use:

• A stiff (non-metal) brush.

• Low-pressure washing.

• Manual removal combined with a moss killer for stubborn patches.

How to Prevent Moss from Returning

• Sweep regularly to remove debris that traps moisture.

• Improve drainage if water pools on the surface.

• Apply a preventative biocide once or twice a year.

• Trim back overhanging trees or shrubs to increase sunlight.

When to Treat Moss

Late spring and early autumn are ideal times to treat moss. These seasons typically provide the right balance of mild temperatures and dry weather for treatments to work effectively.

Summary

Moss on a driveway is both a safety hazard and an aesthetic issue. Using the right moss killer, cleaning regularly, and preventing regrowth will keep your driveway safe and looking its best all year round.