Home Life & Style Remove green algae stains from wooden fences and patios with ‘magic’ kitchen...

Remove green algae stains from wooden fences and patios with ‘magic’ kitchen item

Now that summer is here most people are enjoying spending time outdoors, but your garden view can easily be spoiled if your fence is covered in slimy green algae. 

Wooden fences, patios and decking often become covered in algae film, mould and mildew if there has been a lot of rain in your area as it thrives in moisture, but needs to be cleaned away as soon as possible as it will cause wood to rot. 

While it can be expensive and annoying to get a fence replaced, the wood rotting on a patio or deck can be dangerous which is why it is important to clean these structures. 

Brian Bayse, an expert from Decks and Docks, said: “While green algae on a deck may not be aesthetically pleasing, its presence on your wood deck can pose significant hazards. 

“It’s crucial to understand the importance of promptly removing algae to prevent potential damage and ensure the safety of your outdoor space.”

How to get rid of green algae on wood 

You do not have to spend lots of money or use harsh chemical cleaners around your garden. There is one simple and very effective solution to clean away algae that you likely already have at home.

One of the best ways to get rid of algae is simply white vinegar as it is acidic and has antifungal properties, which is safe for surfaces but will break down bacteria. 

It is also a solvent which can break down organic matter such as algae and mould to make it easier to wipe away. 

Brain said: “White vinegar is a popular natural cleaner that can be used both inside and outside. 

“Simply combine one gallon of water with one cup of white vinegar and scrub the deck with the solution to remove algae, mould, and mildew.”

All you need to do is mix the vinegar and hot water and apply it to the algae-affected area. You can use a spray bottle to make it easier if you wish to clean a fence. 

Allow the vinegar solution to soak into the wood for 15 to 30 minutes to give the acid time to dissolve the algae. 

Use a broom or bristle brush to quickly drub the area and the algae should come off easily since it has been treated with vinegar. 

Rinse the wooden area thoroughly with clean water to get rid of any algae residue and you should have a sparkling clean deck, patio or fence that has no green slime on it anymore.

Algae and mouldy are likely to be an issue if you live in Britain due to the amount of rain we get, but you can prevent growth by keeping wooden areas around your garden clean and using water-repellant paint to prevent both moisture and bacteria build-up. 

Brain said: “Unfortunately, there is no magic spell to cast on your deck to prevent algae growth, but there are some measures that can be taken to slow or prevent it. 

“The first is cleaning annually or biannually. Algae spreads quickly, so the longer you allow it to build up, the more it grows. 

“This is why it is important to have a regular cleaning schedule. It’s also a good idea to seal your deck with a quality water repellant. Algae needs moisture or standing water to grow, so keeping your deck dry is key.”


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