How to Get Grass Stains Out of Kids' Clothes (and Every Other Summer Stain)

Summer leaves evidence. Most of it comes out if you get to it before the dryer does.

You know the laundry pile. It is Sunday night, the kids are finally asleep, and there it is: a tee with a green smear from a slip-and-slide landing, shorts with mud at the seat, a once-white shirt now wearing a popsicle map, and somewhere in there, the shirt with the little rust-colored shadow from sunscreen that you cannot quite explain. A summer Saturday is basically a stain factory, and the clothes that take the hit are usually the ones your kid actually likes.

Here is the good news. The vast majority of those stains are completely beatable, and you almost never need harsh chemicals to win. You need to know what each stain is made of, and you need to get to it before heat locks it in. We make kids' clothes in Los Angeles, so what touches a kid's skin and how a garment holds up to a real childhood is what we think about all day. Below is the stain playbook we would hand a friend, built on cleaning and textile sources rather than guesswork.

The one rule that saves every stain: heat is the enemy

If you remember nothing else, remember this. Heat sets stains. Hot water helps, but the dryer is the real culprit, because that blast of heat bakes whatever is left in the fibers into something close to permanent. The University of Georgia Extension's textile-care team puts it plainly in its guide to removing blood stains: treat the stain immediately, because stains set by heat will be difficult to remove. The same logic applies to grass, mud, food, and most of summer.

So the workflow is always the same. Rinse or treat in cold water, wash in cold or cool water, and then, before anything goes near the dryer, check the stain in good light. If it is gone, dry as usual. If a shadow remains, treat it again. The cleaning pros at Merry Maids make the same point in their grass-stain guide: hot water can set a stain that was not fully removed, and the heat of the dryer locks it in even more than hot water does. One trip through a hot dryer can undo all your good work, so when in doubt, air dry and look again.

Why stains behave a little differently on organic cotton

Here is something most stain guides never mention. A lot of conventional kids' clothing is quietly engineered to resist stains in the first place, and that is not always the gift it sounds like. A University of Notre Dame study that tested children's textiles labeled stain resistant, water resistant, or wrinkle resistant detected fluorine, a marker for PFAS, in 65 percent of the samples. The highest concentrations showed up in school uniforms, and, surprisingly, in the uniforms labeled 100 percent cotton rather than synthetics. PFAS are the "forever chemicals" you have probably read about, and one of the study's authors noted there is often no consumer option to simply buy clothing you can wash instead of clothing that comes coated with chemicals to reduce stains.

Certified organic cotton sits on the other side of that line. The Global Organic Textile Standard, the certification behind GOTS-labeled clothing, maintains a general ban on toxic and harmful chemicals such as PFAS. Our own organic cotton is GOTS certified under GOTS-CUC-03-TC-1033552, which means there is no stain-repellent finish sitting between a mess and the fiber, and nothing like that pressed against your kid's skin all day. You can read more about what that certification actually proves on our materials page.

The honest tradeoff is this. Without a chemical coating doing the work, a stain on organic cotton lands directly on the fiber, so you treat it yourself with a little technique and timing instead of letting a finish repel it. We think that is the better deal, especially for kids, who are a more vulnerable group when it comes to skin contact with these chemicals. The upside is that pure cotton also releases stains beautifully once you work with it instead of against it. That is the whole rest of this guide.

On organic cotton there is no finish doing the work, so a few minutes of pre-treating does it instead.

The summer stain playbook, mess by mess

Different stains are made of different things, so they surrender to different methods. Here are the ones a kid's summer actually produces, and the simplest way to beat each one. A quick universal note first: always check the care label, and always test any stain treatment on a hidden seam first to make sure the color holds.

Grass stains

Grass is the classic, and people genuinely wonder whether it comes out at all. It does. Grass stains are mostly chlorophyll, the green pigment that behaves like a dye, mixed with plant proteins and a little dirt, which is why Merry Maids describes them as a combination of chlorophyll and assorted proteins. Treat them fresh whenever you can, because the longer a dye sits on a fiber, the more it sets in.

The move: lay the garment on a towel, coat the stain with an enzyme laundry detergent (most standard liquid detergents qualify) or a stain remover, and gently work it in with a soft brush. Let it sit at least 15 minutes so the enzymes can break the stain down, then wash in cold water. For getting grass stains out of jeans specifically, the same approach works, just give denim a little extra brush time because the heavier weave holds on tighter. Check before drying, and if a faint green remains, repeat. For an older, set-in grass stain, soak the whole garment in cool water with oxygen bleach for a few hours before treating again.

Mud and dirt

The counterintuitive rule for mud is to do nothing while it is wet. If you try to wipe or wash fresh mud, you grind it deeper into the weave. Let it dry completely, then knock or brush off as much of the dried crust as you can. Once the loose dirt is gone, pre-treat what remains with a little detergent worked into the fabric, let it sit, and wash in cold water. Patience at the start is what gets mud out of clothes without a fight.

Popsicle, berry, and other food stains

Summer food stains, from a melting popsicle to a fistful of blueberries, are mostly sugar and dye. Rinse them from the back of the fabric under cold running water first, pushing the stain out the way it came rather than deeper in. Then pre-treat with detergent and wash cold. These are some of the easier stains to get out of baby clothes and kids' tees as long as you skip hot water, which can cook the sugars and the dye right into the fibers.

Sunscreen stains

This is the sneaky one, the rust-colored shadow that appears around collars and cuffs with no obvious spill. The usual culprit is avobenzone, a common chemical sunscreen ingredient. As CBS News reported, avobenzone can oxidize when it meets iron in hard water, leaving orange marks, and the stains are mostly oily on top of that. So treat the oil first: rub a small amount of liquid dish soap directly into the stain, let it sit a few minutes, then rinse and launder in warm water and air dry. One helpful note for parents from that same reporting: mineral-based sunscreens, which is what many kids' and baby formulas already are, do not contain avobenzone and do not leave the orange stain. So the easiest fix is sometimes a switch in the sunscreen aisle.

Scraped-knee blood

Summer means scraped knees, and blood is a protein stain, which means one rule above all: cold water only. The University of Georgia Extension guide says to rinse fresh blood stains in cold running water and rub with a little detergent, repeat, and for stubborn marks, soak in cool water and then in lukewarm water with an enzyme pre-soak. If a trace still lingers on a white or light garment, a few drops of 3 percent hydrogen peroxide on the spot for a minute or two, then a thorough rinse, usually finishes it. Never use hot water on blood, and never put it in the dryer until it is gone, because heat sets it for good.

Marker and ink

Washable kid markers are designed to release in the wash, so a normal cold cycle handles most of them. Permanent marker is the tough case. Lay the garment stain-down on paper towels, dab the back with a little rubbing alcohol so the ink lifts out onto the towel instead of spreading, replace the towels as they soak up the color, then launder cold. It will not always be perfect, and that is a fine moment to remember that not every stain has to win.

Build a small, gentle stain kit

You do not need a cabinet of specialty sprays. A handful of basics, all gentle enough for cotton, will handle almost everything summer throws at you. Keep these within reach of the laundry sink so treating a stain is a two-minute job instead of a someday job:

Six basics, all gentle on cotton, handle nearly every summer stain.

• An enzyme laundry detergent. The workhorse for protein and plant stains like grass, blood, and food. Most standard liquid detergents already contain enzymes.
• Oxygen bleach. A color-safe soak for older, set-in stains. Gentler on cotton and on color than chlorine bleach.
• 3% hydrogen peroxide. A mild, targeted brightener for blood and other stubborn spots on white and light fabrics. Test on color first.
• Liquid dish soap. The oil cutter, ideal for sunscreen and other greasy marks before you wash.
• White vinegar. A handy pre-treat option and a gentle freshener.
• A soft-bristle brush. An old toothbrush works, for pushing treatment into the weave without abrading the fabric.

One caution worth repeating from the University of Georgia guide: always pretest any cleaning agent on an inconspicuous area first to check that the color holds, and follow the care label. Hydrogen peroxide and oxygen bleach are mild, but they are still mild bleaches, so a hidden seam is your friend before you treat a bright or dark garment.

When a stain wins anyway, and why that is fine

Sometimes a stain just stays. An old set-in mark, a mystery spot that went through the dryer before you caught it, a permanent marker masterpiece. That is not a parenting failure. It is evidence that a kid had a good summer, and it is part of why we think about clothes the way we do.

Clothes that are made to be played in, washed often, and handed down are going to collect a few honorable scars. Sturdy organic cotton takes repeated gentle washing far better than thin fast fashion, which is exactly what you want from something that might dress two or three kids in a row. If you want the full gentle-care routine that keeps that cotton soft wash after wash, our guide on how to wash baby clothes walks through it.

And when a stain truly will not budge in a visible spot, you have one more move that kids actually love. A collectible patch placed right over the mark turns a ruined tee back into a favorite, and lets your kid decide what goes there. Our tops are built with patch-ready areas so a stubborn stain becomes a swappable design instead of a reason to toss the shirt. It is the most fun a stain can have, and it keeps a good piece of organic cotton clothing in rotation a lot longer.

Frequently asked questions

Do grass stains come out of clothes?

Yes, in most cases. Grass stains are chlorophyll and plant proteins, and they respond well to an enzyme detergent worked into the stain, left for about 15 minutes, then washed in cold water. The key is to treat them before any heat. Hot water and especially the dryer can set a grass stain permanently, so check the fabric and re-treat if needed before drying.

How do you get grass stains out of jeans?

The same way as any washable fabric, with a little extra patience for the heavier weave. Pre-treat the stain with enzyme detergent or a stain remover, work it in with a soft brush, and let it sit at least 15 minutes. Wash in cold water and air dry, then check. For older grass stains on denim, soak the jeans in cool water with oxygen bleach for a few hours before treating and washing again.

How do you get sunscreen stains out of clothes?

Treat them as oily stains. Rub a small amount of liquid dish soap directly into the mark to break up the oil, let it sit a few minutes, rinse, then launder in warm water and air dry. Sunscreen with avobenzone can also leave an orange, rusty tint where it reacts with iron in hard water, so a second pass may be needed. Switching to a mineral-based sunscreen, which most kids' formulas already are, avoids the orange staining entirely.

Can you remove old, set-in stains?

Often, yes, it just takes more than one round. Soak the whole garment in cool water with oxygen bleach for a few hours to loosen the stain, then pre-treat and wash in cold water. Inspect before drying and repeat if the stain has faded but not vanished. The thing to avoid is the dryer, because a hot tumble between attempts can lock a fading stain back in.

Is bleach safe for kids' organic cotton clothes?

Skip chlorine bleach for everyday stains. It is harsh on fibers and on color, and it is rarely necessary. Reach instead for oxygen bleach as a color-safe soak, or a few drops of 3 percent hydrogen peroxide on white and light fabrics for stubborn spots. Both are far gentler on cotton. Whatever you use, the University of Georgia Extension's advice holds: always pretest on a hidden seam first to make sure the color stays put.