Patio black spots, caused by a type of lichen that firmly embeds itself into hard surfaces, are notoriously difficult to remove. These stubborn stains often resist even the most intensive pressure washing, leaving many homeowners frustrated and searching for a more effective solution.
However, gardening enthusiasts have come together in the Mrs Hinch Gardening Tips Facebook group to share their tried-and-true methods for eliminating these unsightly blemishes. One of the most popular solutions is sodium hypochlorite, a powerful chemical known for its ability to kill the organisms that cause black spots.
Cassandra reported success with sodium hypochlorite, saying: “I sprayed it all over my patio, left it for half an hour, then just rinsed it off. You can leave it longer if you prefer.” David Simkins also shared his experience: “I bought sodium hypochlorite from eBay, brushed it on, and rinsed it off after an hour. It also kills any weeds.” Charlotte Lodge added: “Sodium hypochlorite worked really well for me to get rid of the black spots.”
For those interested in trying sodium hypochlorite, it is available for £21.50 on Amazon or £30 from Alliance Online. However, some gardeners caution that while sodium hypochlorite can reduce the appearance of black spots, it may not completely eliminate them. Shannon Booker clarified: “Sodium hypochlorite is undiluted bleach, which is good for cleaning paving, but it doesn’t remove black spots; it just fades them. The fungus is embedded and grows. I’ve used Pro-Kleen black spot remover this year, and the stains are all gone now.”
Other gardeners have also praised Pro-Kleen black spot remover. Jess Gwyen said: “Pro-Kleen black spot destroyer is really good. I sprayed my slabs, and within 10 minutes, the black spots were gone. It works like magic.” Fiona Stewart added: “Pro-Kleen black spot remover is the only thing that works to get rid of black spots. I just had mine delivered.”
The Pro-Kleen Ultimate Black Destroyer is available on Amazon for £29.95, and customers have noted its effectiveness in making patios look like new again. However, reviews on its overall effectiveness and value for money are mixed. The product can also be found at B&Q and OnBuy for £29.95.
