How to Remove Grass Stains

By Zach Pozniak, VP of Operations at Jeeves of Belgravia New York and fourth-generation dry cleaner · @jeeves_ny

How to remove grass stains

Grass stains are a combination stain: they contain protein from the plant matter and color that can cling to fabric. That means the best results come from a two-part approach: an enzyme pretreat to break down the protein, then oxygen bleach if the stain leaves behind a green tint.

Quick method for fresh grass stains

1. Rinse first. Use cool or warm water to flush out loose dirt and grass bits. If there are clumps on the fabric, brush them away gently before treating.
2. Apply an enzyme stain remover. Look for a product with protease in the ingredient list. Work it in lightly with a soft brush or your fingers, then let it sit for at least 1 hour.
3. Wash as the care label allows. Use the warmest water safe for the fabric and your usual detergent.
4. Check before drying. If the stain is still visible, do not tumble dry yet. Heat can set what remains.

For stubborn grass and dirt stains

If the stain includes dirt or has already been washed once, treat it like a mixed stain, not just a grass stain.

Add a baking soda or washing soda paste

Mix a little baking soda or washing soda with water and apply it to the stained area. This can help lift dirt that is bonded to the fibers. Let it sit for about 15 minutes, then wash again.

Use oxygen bleach on whites or bright colors

If a green shadow remains, spray or soak with 3% hydrogen peroxide or a powdered oxygen bleach. This is especially helpful on white or colorfast bright clothing. Let it air dry if you are spot-treating, then rewash if needed.

What not to do

• Don’t rub aggressively. Up-and-down tamping is better than scrubbing, which can spread the stain and damage fibers.
• Don’t dry too soon. A heat cycle can lock in the stain.
• Don’t use chlorine bleach on everything. Oxygen bleach is usually the safer choice for grass stains, especially on colored items.

When to get professional help

If the garment is silk, wool, leather, or labeled dry clean only, or if the stain is old and set in, professional cleaning is the safest route. Delicate fabrics can react badly to peroxide, washing soda, or vigorous brushing.

For athletic wear, school uniforms, and everyday cottons, this method usually works well if you treat the stain before it dries or before you put the item in the dryer.