As anyone who likes to spend time outdoors or has rambunctious children can tell you, trying to remove grass stains
from white clothing with the usual laundering techniques can be a challenge. Try soaking the stained item in
full-strength vinegar for a half hour or more before washing, then wash as usual.
the Editors of Publications International, Ltd.. "10 Green Tips for Removing Stains" 08 April 2009.
HowStuffWorks.com. 04 June 2011.