Life Hack: How to remove algae from patio slabs and concrete ahead of the longer evenings
Algae can build up on patios, concrete and other surfaces in shady areas that don’t get a lot of sunlight
With the clocks changing over the weekend, I’m already dreaming of long spring and summer evenings spent relaxing in the garden — just keep your fingers crossed for good weather this year. However, the patio area in my own garden is in need of some TLC after a long damp winter as some corners have developed patches of green algae, a common problem in Irish gardens due to our climate.
Algae, as well as moss, can build up on patios, concrete and other surfaces in shady areas that don’t get a lot of sunlight (for example, my patio in winter). Porous surfaces, like sandstone and limestone, allow more air and moisture into them too, leading to a buildup of algae. Generally, the build-up of algae is more likely to happen during the autumn and winter months as there is less sunlight and more rain.
