Grass stains have a reputation for being difficult to get out, and that reputation is well-earned.
(An old toothbrush or a nail brush can be used as a laundry brush.)
Larger items, like picnic blankets, can be shaken to loosen stuck-on grass or soil.
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However, always check the care tag for special instructions regarding water temperature and cycle speed and follow those.
Sometimes it simply takes two passes to fully remove a stubborn stain.
If the stain was not discernibly reduced in the wash, follow our instructions for treating set-in grass stains.
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How to Remove Set-in Grass Stains
There are two methods for removing deeply set-in grass stains.
If needed, use a laundry brush to gently work the Fels Naptha into the stain.
Then, use your hands to agitate the item so that the solution can penetrate its fibers.
Allow the item to soak for an hour up to overnight, then launder as usual.
