If your garden currently has an algae problem, you'll be happy to know that you can get rid of this slime with just a few simple steps. And if you know how to remove algae from your patio, you can take a few preventative measures to prevent its permanent recurrence.
Terraces are hotspots for algae growth because they lack drainage, allowing water to collect on the surface. If there is stubborn algae infesting your garden, there are a few important things you need to get before you start solving the problem. The method is simply to apply one of the best patio cleaners (or a natural alternative) and scrub it with water.
But some expert tips for removing algae from your patio are very helpful. We've put together this easy-to-follow guide that tells you everything you need to know to get rid of algae in your garden.
(Image credit: Future/Polly Eltes)
what you will need
step by step
1. Prepare the patio
The first step in removing algae from a patio is to remove dirt, debris, and leaves with a stiff-bristled brush.
"This makes gardening easier and allows the cleaning solution to do its job better," says Morris Hankinson, founder and director of Hopes Grove Nurseries . "Make sure nearby plants are protected and remove all furniture and pots."
(Image credit: Getty Images)
2. Put on your safety gear
"When cleaning a deck, safety equipment is essential to prevent the solution used from damaging clothing or coming into contact with eyes and skin," advises Morris.
Before you start cleaning, make sure you wear a long-sleeved shirt and pants that can get dirty easily. Gloves and goggles may seem a little overkill, but it's important to prevent harsh chemicals from coming into contact with your skin and eyes.
3. Apply your cleaning solution.
Because algae can be very stubborn, any cleaning solution you use must be effective. You can try cleaning with white vinegar or bleach, but you may need the help of a specially formulated algae cleaner to get the job done. Please note that when using bleach, you must ensure that it does not harm surrounding plants or wildlife.
Follow the instructions provided by the manufacturer of the cleaner you use. It may be recommended to dilute it with water or apply directly. "Most solutions need to be applied to the patio surface and allowed to sit for at least 20 minutes," adds Morris.
(Image credit: Future PLC/Polly Eltes Photography)
4. Rub
If you want to clean a deck without a pressure washer , try using a stiff-bristled brush first. For less stubborn algae that have not been there for long, this may be enough to loosen the slime film.
"You should easily see the algae dissolving, and the solution will be a cloudy green color," says Morris. "Scrub as much as you can and then rinse well with water. »
Rinse the solution out with water using a watering can or hose. If any parts have lifted, repeat steps 3 and 4 to move the rest.
5. Or use a pressure washer
If the algae doesn't seem to be moving, it might be time to contact one of the best pressure washers . These are powerful machines that should be able to remove stubborn algae (they're also useful if you want to remove black spots from your deck ).
It is recommended to use the machine's low pressure setting if you are using one to prevent the patio tiles from coming loose. Use the washing machine to clean the algae according to the machine's instructions.
(Image credit: Getty Images)
6. Prevention is the best solution
After following the steps above and removing stubborn algae from your garden, you can take a few simple steps to prevent the algae from returning.
First, make sure you have good drainage to avoid leaving large amounts of water on your deck. That's a recipe for algae growth. And if anything can be cut or removed to improve patio lighting, that may help.
"You can also try applying a barrier sealer to the tile," recommends Morris. "This prevents algae from building up and creating an unsightly deck."
The basics of garden cleaning
Frequently asked questions
Will bleach kill algae?
Yes, bleach kills algae, but it should be used with caution. "Bleach kills not only the algae, but also nearby plants and wildlife," says Morris. "Depending on the material, it may also discolor some platforms. »
If you use bleach, it is recommended to dilute it with water so that it is not as strong. Wear protective gloves when handling bleach and also protect nearby plants. It's best to completely remove potted plants from the area, as wind or rain could carry the bleach to places you don't want it.
Is bleach or vinegar better for killing algae?
Depending on the amount, bleach and vinegar can be used to kill algae. If you prefer to use a cleaner instead of a formulated cleaner, try white vinegar first.
"Mix equal parts white vinegar and warm water in a spray bottle and apply to the affected area of the patio," advises Laura Marsden, marigold cleaning expert. "Let it sit for 15 to 30 minutes to allow the vinegar to work, as the acid will help break down the algae."
Remove the vinegar solution with a stiff-bristled brush. Some algae should rise. If you don't have much success, you can try bleach, but dilute it with water and remove any surrounding plants.
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