
There are some tried and tested ways to clean white outdoor cushions. Get it right and you can expect them to continue to look as good as new; get it wrong and they may gray or stain further, and you might need to find replacements quicker than you'd like.
So, if your outdoor furniture needs a spruce, whether at the beginning of the spring season when they're fresh out of storage, or before they go back into storage in fall, this is what to do, and what not to do.