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Outdoor furniture and cushions are meant to provide comfort and style to your outdoor spaces, but when they become infested with mould and mildew, they can quickly become unsightly and even a health hazard. Mould and mildew thrive in damp, humid conditions, making outdoor cushions and furniture a prime target for these fungal growths. Fortunately, cleaning mould off outdoor cushions and furniture is not only possible but relatively simple if you follow the right steps.
In this blog, we’ll provide a comprehensive guide on how to clean mould off outdoor cushions and furniture. From natural solutions to more powerful cleaning methods, we’ll walk you through the best techniques to restore your outdoor items to their former glory while keeping your family’s health in mind.
Why Does Mould Appear on Outdoor Furniture and Cushions?
Before diving into the cleaning methods, it’s helpful to understand why mould and mildew appear on outdoor furniture in the first place. Mould is a type of fungus that thrives in damp, warm, and poorly ventilated areas. Outdoor cushions and furniture are vulnerable because they are often exposed to rain, moisture, and humidity, which create the perfect breeding ground for mould and mildew.
Other factors that contribute to the growth of mould on outdoor furniture and cushions include:
Humidity: Humid weather encourages the growth of mould and mildew. Coastal areas and regions with high humidity are particularly susceptible
Moisture Exposure: Frequent rainfall or damp conditions provide a consistent source of moisture that mould and mildew love.
Lack of Sunlight and Air Circulation: When outdoor cushions and furniture remain damp for too long without exposure to sunlight or air, the chances of mould development increase.
While mould can be removed, it’s crucial to take preventive steps to reduce the likelihood of future growth. But first, let’s get started with cleaning.
Step-by-Step Guide to Cleaning Mould Off Outdoor Cushions and Furniture
1. Assess the Situation
Before starting any cleaning process, assess the extent of the mould and mildew damage on your outdoor cushions or furniture. If the mould is widespread and has penetrated deep into the fabric, it may be necessary to replace the cushions or fabrics altogether. However, if the mould is confined to the surface, there are several effective cleaning methods you can try.
When to Call in the Professionals
If stubborn stains or mould won’t budge after scrubbing, it’s time for expert help. Professionals use steam cleaners and fabric-safe solutions to restore even the most neglected cushions.
Consider professional cleaning if:
The fabric is delicate or you’re worried about damage from DIY methods.
Mould has spread to the interior fill, not just the surface.
Allergies or sensitivities are a concern, and you need safe mould removal.
For large-scale or persistent mould, a professional clean can save your cushions—and your sanity.
2. Prepare Your Cleaning Area
Choose a well-ventilated area for cleaning your cushions and furniture. If possible, do the cleaning outdoors, such as in a driveway, backyard, or on a balcony. Ensure that you have access to water and that you can easily dispose of cleaning solutions.
Tip: Wear protective gloves, goggles, and a face mask to prevent inhaling mould spores or getting cleaning chemicals on your skin.
3. Vacuum or Brush Away Loose Mould
Before applying any cleaning solutions, it’s important to remove as much of the loose mould as possible. Mould spores can be when disturbed, so use a vacuum with a brush attachment or a soft-bristled brush to gently scrub the surface of your cushions and furniture.
Use a vacuum cleaner with a soft brush attachment to remove surface debris and loose mould spores.
Alternatively, use a dry cloth or a soft-bristled brush to carefully wipe away the mould.
This will help you get rid of the visible mould and allow the cleaning solution to work more effectively.
Can You Use a Pressure Washer on Outdoor Cushions?
You might be tempted to grab a pressure washer for quick results, but caution is key here. If you do choose this method, set the washer to its lowest setting and test a small, inconspicuous area first. Always keep the nozzle several feet from the surface and move in broad, sweeping motions. When in doubt, stick to gentler methods for fabric cushions to prevent tearing or fraying.
4. Choose Your Cleaning Solution
There are several ways to tackle mould on outdoor cushions and furniture, from natural cleaning solutions to chemical treatments. Here are some of the most popular and effective cleaning methods:
Can You Machine Wash Outdoor Furniture Cushions?
It depends on your cushions. If they have removable covers with zippers, check the care label first. Many covers are machine washable if you:
Use a gentle cycle with cool water.
Avoid overloading the machine; wash small covers separately.
Pre-treat tough stains with mild detergent or a baking soda-vinegar mix.
Avoid bleach, as it can damage fabrics and fade colors. For non-removable covers, stick to spot cleaning and air-drying. Airing cushions in direct sunlight helps keep them fresh between washes.
A. Vinegar Solution (Natural and Non-toxic)
White vinegar is a powerful natural disinfectant that can effectively kill mould and mildew. It’s safe for most fabrics and materials, making it an excellent choice for cleaning outdoor cushions and furniture.
How to Use:
Mix equal parts of white vinegar and water in a spray bottle.
Spray the solution directly onto the mouldy areas.
Let the solution sit for 15-30 minutes to allow the vinegar to penetrate the fabric.
Scrub the affected area with a soft brush or cloth.
Rinse with clean water and let the cushions dry in the sun.
B. Baking Soda and Water Paste (For Mild Cases)
Baking soda is another natural cleaning agent that can help remove mild mould and mildew stains. It works well for light mould infestations and helps neutralize odours.
How to Use:
Mix 1 tablespoon of baking soda with 1 cup of water to create a paste
Apply the paste to the mouldy areas of your cushions or furniture.
Let it sit for about 15 minutes.
Scrub the surface with a brush or cloth
Rinse with water and allow the cushions to air dry in the sun.
C. Bleach Solution (For Severe Mould)
For more stubborn and deeply ingrained mould, bleach can be an effective option. However, it’s important to use bleach with caution, as it can damage fabrics and may cause discoloration.
- How to Use:
- Mix 1 cup of bleach with 1 gallon of warm water.
- Apply the bleach solution to the affected areas using a sponge or soft cloth.
- Let it sit for 10-15 minutes.
- Scrub the mouldy areas gently with a soft-bristled brush.
- Rinse thoroughly with clean water and dry the cushions outside in the sun.
Caution: Always test a small, inconspicuous area first to ensure the bleach doesn’t damage the fabric or cause staining.
D. Borax Solution (For Persistent Mould)
Borax is a mineral salt that works well for mould removal. It’s a natural alternative to harsher chemicals and is effective at cleaning outdoor cushions.
Removing Food and Grease Stains from Outdoor Cushions
Don’t let food spills ruin your outdoor cushions! Here’s how to tackle grease stains:
- Act Fast: Sprinkle table salt or talcum powder on the stain to absorb excess oil.
- Let It Sit: Wait 5–10 minutes for the powder to draw out the grease.
- Brush Away: Gently brush off the powder and absorbed oil with a soft brush.
- Clean with Soap and Water: Dab the stain with a mix of mild dish soap and warm water.
- Stubborn Stains: Use a fabric-safe stain remover if needed.
- Rinse and Dry: Rinse the area, blot to remove excess moisture, and air dry in the sun.
Now your cushions are ready for the next outdoor feast!
5. Rinse and Dry Thoroughly
Once the mould and mildew have been scrubbed away, rinse the cushions and furniture thoroughly with clean water. It’s important to remove any remaining cleaning solution to avoid damage to the fabric.
After rinsing, allow your cushions and furniture to dry completely. Place them in a sunny area where they can air dry, as sunlight helps kill remaining mould spores and prevents new growth.
6. Repeat the Process if Necessary
For stubborn mould or mildew stains, you may need to repeat the cleaning process. It’s important to be patient, as deeply embedded mould can take multiple treatments to fully remove.
Preventing Mould and Mildew on Outdoor Cushions and Furniture
How Often Should You Clean Outdoor Furniture Cushions?
To keep your outdoor cushions fresh and mould-free, clean them regularly:
Weekly quick clean: Vacuum or brush off dust, pollen, and debris. Spot cleaning: Wipe up spills or bird droppings immediately. Deep cleaning: Clean more thoroughly every month or after messy events.
If you live in a humid area or use your outdoor space often, increase the cleaning frequency to prevent mould and stains. Regular cleaning helps extend cushion life and keeps your outdoor space worry-free.
While cleaning is important, prevention is key to keeping your outdoor furniture in good condition. Here are some tips to reduce the likelihood of mould and mildew developing:
Keep Cushions Dry: If it’s raining or the humidity is high, bring your cushions inside to keep them dry. This will reduce the moisture that mould and mildew need to thrive.
Use Waterproof Covers: Invest in waterproof cushion covers that can help protect your cushions from moisture and keep them dry during rain.
Sun Exposure: Regularly expose your cushions and furniture to the sun, as sunlight helps kill mould spores and prevent new growth.
Fabric Sealant: Consider using a fabric sealant, such as Rust-Oleum Fabric Water Repellent Spray, to make your cushions more resistant to water and mould. For an added layer of protection, look for specialised products designed to shield outdoor furniture fabric from stains as well. These protective sprays not only help repel spills and moisture but also make routine cleaning easier, keeping your cushions looking fresh and extending their lifespan.
Store Cushions When Not in Use: If you’re not using your outdoor cushions for an extended period, store them in a dry, ventilated space to avoid mould buildup.
Additional Tips for Keeping Outdoor Cushions in Top Condition
- Vacuum Regularly: Aim to vacuum your outdoor cushions at least once or twice a week. Pay special attention to the seams and edges, where dirt and dust tend to accumulate.
- Treat Stains Promptly: Don’t let stains sit—address them as soon as possible. Keeping a homemade spray bottle of vinegar, water, and a little dish soap handy can make spot cleaning quick and easy.
- Deep Clean Seasonally: Wash your cushions several times throughout the season and give the rest of your outdoor furniture a thorough clean before storing everything away for the off-season.
- Dry Thoroughly After Getting Wet: Whether it’s rain, a spill, or after washing, make sure cushions and their covers are dried completely. Separate covers from stuffing if possible and dry in direct sunlight to help prevent mould growth.
- Apply a Protective Layer: Look for fabric sprays that add an extra layer of protection against stains and moisture.
Taking these steps will help ensure your outdoor cushions stay fresh, comfortable, and mould-free all season long.
Conclusion
Mould on outdoor cushions and furniture is a common problem, but with the right cleaning methods, it’s easy to remove. Whether you choose a natural solution like vinegar or a more powerful option like bleach, addressing the mould quickly will help prevent further damage to your cushions and protect your health. Additionally, taking preventive steps to keep your outdoor furniture dry and well-maintained will ensure that you can continue to enjoy your outdoor spaces without worrying about mould and mildew.
By following these simple steps and incorporating regular maintenance, you can keep your outdoor cushions and furniture looking fresh and clean year-round.
