Mold growth on outdoor cushions is a common problem, especially in humid climates. The spores land on the cushions and thrive in the moist, warm environment. While mold on cushions is unsightly, it can also be a health hazard for some people. Fortunately, there are several effective methods to remove mold and prevent it from returning.
Supplies Needed
Removing mold from outdoor cushions requires just a few common household items:
- White vinegar or hydrogen peroxide – natural cleaning agents that kill mold
- Baking soda – helps scrub away mold spores
- Liquid dish soap – cuts through grime and dirt
- Spray bottle – for applying cleaning solutions
- Scrub brush or sponge – for scrubbing the cushions
- Bucket – for mixing cleaning solutions
- Water – for rinsing
Optional supplies:
- Protective gloves and mask – avoid touching mold directly
- UV light or sunlight – exposes hidden mold with UV rays
Step-by-Step Guide
Follow these steps to thoroughly clean moldy outdoor cushions:
1. Shake Loose Debris
The first step is to remove any dried leaves, dirt, or other debris from the cushion’s surface. Be sure to do this outdoors to avoid spreading spores inside. Gently shake and brush the cushion to dislodge anything stuck to the fabric.
2. Mix Cleaning Solution
Make a cleaning solution of either white vinegar or hydrogen peroxide mixed with warm water and a small amount of liquid dish soap. The vinegar or peroxide will kill the mold, while the dish soap helps release the mold spores from the fabric.
- For vinegar, mix 1 part vinegar to 3 parts water.
- For peroxide, mix 1 part peroxide to 4 parts water.
3. Apply Solution and Scrub
Use a spray bottle to liberally coat the cushion with the cleaning solution. Let it soak for 10-15 minutes. This gives the ingredients time to begin breaking down the mold.
After letting it sit, scrub the cushion vigorously with a scrub brush or sponge. Apply pressure to release the mold spores from the fabric fibers. Focus on any stained or discolored areas.
4. Rinse Thoroughly
Once scrubbed, use a garden hose or pressure washer to rinse the cushion. Rinsing washes away mold residue and prevents recontamination. Rinse until the water runs clear.
5. Air Dry Completely
After rinsing, allow the cushion to completely air dry in direct sunlight. The UV rays in sunlight can kill any remaining mold spores. Make sure the cushion is 100% dry before using or storing.
6. Apply Baking Soda
For extra protection once dry, sprinkle baking soda liberally over the surface of the cushion. The baking soda absorbs moisture and helps inhibit mold regrowth. Let the baking soda sit for 15-30 minutes before vacuuming away.
7. Repeat as Needed
Check cushions periodically and re-clean any areas with new mold growth. A monthly cleaning can help prevent major mold infestations.
Tips for Preventing Mold
Preventing mold from returning is key. Here are some helpful prevention tips:
- Allow cushions to dry completely between uses. Never put away a damp cushion.
- Store cushions indoors when not in use. Avoid leaving them outside 24/7.
- Use cushion covers in damp climates. They protect the inner cushion from moisture.
- Spray cushions with white vinegar before storing. The acidity inhibits mold growth.
- Sprinkle baking soda on cushions when storing indoors. It absorbs excess moisture.
- Check for mold frequently – especially along seams, creases, and the underside.
- Discard cushions that are badly damaged or misshapen. These collect moisture easily.
- Replace old, worn fabric. Newer cushion covers resist mold better.
- Avoid storing other items on top of cushions. This can trap moisture.
- Wash removable cushion covers regularly to eliminate dirt and debris.
Common Questions
How do I know if my outdoor cushions have mold?
Look for visible mold growth, which often appears grayish, greenish, or blackish in color. Also look for moist or discolored areas of fabric, a musty odor, and/or a pattern of mold dots. Poking the cushion with a finger can help detect hidden mold underneath.
What kind of mold grows on cushions?
The most common mold species found on outdoor cushions are Alternaria, Aspergillus, and Cladosporium. These mold types thrive on fabric, wood, and other organic materials. They grow rapidly in the right conditions.
Can mold on cushions make me sick?
Yes, mold exposure can cause allergic reactions or respiratory irritation in some individuals. Mold spores contain allergens and mycotoxins that can trigger headaches, breathing issues, and aggravated asthma when inhaled. Take precautions and seek medical help if needed.
How do I fully sanitize cushions after mold removal?
For full sanitization, soak the cushion in a tub or pool filled with water and 1/2 cup of bleach for 15 minutes after scrubbing. Rinse thoroughly and air dry in direct sunlight. The extended bleach soak kills any remaining spores.
Should I discard cushions if the mold is really bad?
If there is extensive mold growth and deep-set staining that does not respond to cleaning, it’s best to discard the cushions. The mold can damage the cushion interior and pose an ongoing health risk. Replacement is recommended for severe cases.
Can I use borax instead of baking soda?
Yes, borax can be used instead of baking soda. It works similarly to absorb moisture. Use approximately 1/2 cup of borax per cushion, sprinkling it evenly over the surface and letting it sit before vacuuming up. Exercise caution, as borax should not be inhaled.
How can I stop mold from growing back so quickly?
Be diligent about fully drying cushions between uses, using cushion covers, sprinkling with baking soda, and cleaning regularly. Also, try spraying with a 50/50 vinegar and water solution between deep cleanings to prevent fast regrowth. Store indoors when possible.
When to Get Professional Help
While minor mold spotting can often be managed at home, extensive mold growth may require professional mold remediation services. Seek professional help if:
- The mold growth covers a large area of the cushion surface.
- The mold has infiltrated deep into the cushion interior.
- Musty odors persist after cleaning.
- You have health issues like asthma that are aggravated by mold exposure.
- DIY cleaning attempts are ineffective.
Look for a professional mold remediation company that uses safe, eco-friendly methods. Remediators have commercial-grade disinfectants, ventilation systems, and drying tools to fully eliminate mold and prevent it from spreading. Though costly, their services can be worthwhile for severe mold cases.
Conclusion
Outdoor cushions frequently fall victim to unsightly mold, which can be difficult to remove. With the proper cleaning solutions and some physical scrubbing, however, you can eliminate mold and prevent recurrence in most cases. Be vigilant about fully drying cushions between uses, keeping them clean, and checking regularly for new growth. With some persistence and prevention, you can enjoy your outdoor cushions mold-free.