Discovering mildew on your outdoor furniture cushions is a common but frustrating problem. The best solution depends on the cushion material. For most fabrics, a simple white vinegar and water solution is highly effective and eco-friendly. Mix equal parts white vinegar and warm water in a spray bottle. Generously spray the affected areas and let it sit for 10-15 minutes. Scrub gently with a soft-bristled brush, then rinse thoroughly with a hose and allow the cushions to dry completely in the sun.
For tougher mildew stains or on bleach-safe fabrics (check the care label), you can use a diluted bleach solution. Combine one cup of bleach with one gallon of water. Apply with a spray bottle or sponge, scrub lightly, rinse extremely well, and dry fully. Always wear gloves and work in a well-ventilated area.
For delicate fabrics or as a powerful alternative, consider a commercial mildew remover or oxygenated bleach cleaner, following the product instructions carefully.
The key to preventing mildew's return is to keep cushions dry. Store them indoors when not in use for long periods, use breathable storage bags, and bring them inside during rainy weather. Regular cleaning with a mild soap solution before mildew appears also helps. With the right approach, you can restore your cushions and enjoy a fresh, clean outdoor space.