Green is the color of hope, and you should not lose that when you have a grass stain. That is, provided that you do not use any water on the stain first, because this would make removal more difficult. It makes more sense to put a diluted ammonia solution or lemon juice on the stain before washing in hot water. An old home-made remedy helps against older grass stains. First soak the soiled spot in sour milk and then rinse it with fresh milk. We recommend a mixture of egg white and glycerine for flannel. And if you were outside in green spaces with a light-colored summer dress, first treat the grass stains using some ethyl alcohol. Green grass stains quickly become very faint when they are treated with bleach. Use a color-fast, liquid bleach for colored fabrics, wool and silk. For white fabrics, add a bit of stain remover to the detergent.
Tip: Miele washing machines with the "Stains" function detect this stain and treat it specifically!