Earth Day at the Cemetery: The Bleach-Free Cleaning I Do Every April 22nd

headstone cleanning in Texas | headstone cleaning in New York

I’ll never forget my first Earth Day cleaning. I was at a tiny cemetary outside of Elkhart, Indiana, with my dog Rusty tied to a tree. I had a bucket of warm water, a soft brush, and a giant bottle of dish soap I’d grabbed from my kitchen. Took me three tries to get the lichen off that old limestone marker. Worth it. But I also learned a hard lesson: some of those commercial soaps leave a film that attracts dirt faster than if you’d left the stone alone. Big mistake. Never again.

That’s why every April 22nd, I do things different. I grab my gear, head to my local cemetery, and do a proper eco grave cleaning. No bleach, no harsh chemicals, no wire brushes. Just slow, careful work that respects the stone and the ground around it. Earth Day is perfect for this — it’s a reminder that gravestones are part of the landscape, not just history. So let me walk you through what I actually do, step by step.

What You Need: My Go-To Eco Gear List

I keep it simple. Here’s my exact kit:

• A gallon of D/2 Biological Solution. It’s pH-neutral, non-ionic, and safe for all stone types. A little pricey, but one gallon lasts me a whole season. I buy it online.
• Two soft-bristle brushes: one nylon brush for detailed work (like lettering), one larger brush for flat surfaces. Both have natural wood handles — no plastic if I can help it.
• A plastic spray bottle. I use a repurposed one from an old window cleaner. Rinse it well first.
• A bucket of tap water. Not distilled, not fancy. Just water.
• A couple of old cotton rags. No paper towels — they leave lint.
• A soft plastic scraper (like a wide putty knife) for thick moss or lichen. I file the edges round so they don’t scratch.
• A kneeling pad. Your knees will thank me.
• Gloves. Not latex. I use nitrile because they’re thicker and don’t tear as easily.
• A spray bottle of plain water for rinsing.

That’s it. No pressure washer, no bleach, no magic potions. Just patience and the right stuff.

Step 1: The Slow Start — Wetting the Stone

Before I even touch the stone, I spray it down with plain water. This does two things: it loosens surface dirt, and it primes the stone so the cleaning solution doesn’t just run off. I let it sit for about five minutes. If it’s a hot day, I re-wet it. Dry stone soaks up cleaner too fast, and that’s wasteful.

Then I mix my D/2. I use a 1:1 ratio with water in the spray bottle. Shake gently. Don’t froth it. Then I mist the entire stone from top to bottom. I work in small sections — about a square foot at a time. Let it sit for ten minutes. The biological stuff in D/2 needs time to break down the algae and lichen. It’s not instant, and that’s okay.

Step 2: The Gentle Scrub — No Elbow Grease Needed

Here’s the trick: you don’t scrub hard. You let the cleaner do the work. I use the larger brush first, in a circular motion, just enough to lift the grime. Then I switch to the smaller brush for the carved letters. If there’s stubborn lichen, I use the plastic scraper carefully — like shaving butter. Press too hard and you’ll scratch the stone.

I rinse each section with the spray bottle before it dries. That’s key — you don’t want the cleaner residue to dry on the stone. It leaves a sticky film that attracts dust. Rinse, rinse, rinse. I go through about two gallons of water per stone.

One thing I always check: the base of the stone. That’s where moisture collects and moss grows thick. I spend extra time there. And I never pull moss off by hand — it can tear the surface layer of the stone. Always wet it first and brush it off.

Step 3: The Earth-Friendly Cleanup

After I’m done, I collect all the rinse water. I don’t dump it on the ground near the stone. That water has biological cleaner and algae bits in it — not toxic, but still not great for the grass or the plot. I pour it into a seperate bucket and dump it at least ten feet away, in a patch of gravel or bare dirt. Or I take it home and water my garden with it. Yes, D/2 is plant-safe. I’ve tested it on my marigolds.

Then I pack up my brushes and rags. I wash them with hot water and air dry. No soap. The brushes last for years. My oldest nylon brush is from 2016 — still soft.

And I always leave a note on the stone with a piece of tape: "Cleaned for Earth Day 2024 — Sarah, Genealogist." I write it small, on the bottom corner. Families find it and smile. I’ve gotten three thank-you emails from people who saw it.

Why I Never Use Bleach or Household Cleaners

Look, I get it. Bleach is cheap and kills moss fast. But it’s also a salt. It gets into the pores of the stone and dries as crystals. Those crystals expand and contract with temperature changes, and over time they flake off the surface. That’s called spalling. It destroys detail. I’ve seen names disappear because someone bleached a gravestone once a year for a decade.

Same goes for vinegar, ammonia, or any acid. They etch the stone. Marble is especially vulnerable — it’s soft and porous. Limestone is even worse. Sandstone crumbles. The only safe cleaners are pH-neutral and non-ionic. D/2 is the gold standard. There are others, but I stick with what works.

And wire brushes? Never. They leave metal bits that rust and stain. Plus they scratch the patina. A stone’s surface is it's history. Don’t scrub it away.

Frequently Asked Questions

Q: Can I use dish soap like Dawn for eco grave cleaning?

A: Short answer: no. Dish soaps are designed to cut grease, but they leave a residue that attracts dirt over time. Plus they often have dyes and fragrances that can stain porous stone. Stick with a dedicated stone cleaner like D/2. It’s worth the extra cost — one gallon cleans about 20 average headstones.

Q: Is it safe to clean headstones on a hot sunny day?

A: Not really. Direct sunlight makes the cleaner evaporate too fast, which leaves residue and can cause streaking. I always clean in the morning or late afternoon, or on a cloudy day. If the stone is hot to the touch, wait. Your spray bottle water should be cool, not ice cold — sudden temperature changes can crack stone.

Q: What do I do with lichen that’s really thick and crusty?

A: Don’t scrape it off dry. Wet it thoroughly, then apply D/2 and let it sit for 15-20 minutes. Use a soft plastic scraper gently. If it’s still stuck, reapply and wait longer. I’ve had lichen that took three applications over two days. Patience is cheaper than a new headstone. Never use a metal scraper or wire brush.

Q: Can I clean a headstone that’s already been damaged by bleach?

A: Yes, but carefully. If the stone is flaking or powdery, don’t scrub at all. Just spray with water and D/2, let it sit, and rinse gently. You won’t undo the damage, but you can stop it from getting worse. For badly spalled stones, I recommend consulting a professional conservator. Don’t try to fill cracks with anything.

Q: Is D/2 really safe for the environment?

A: Yes. D/2 is a biological solution that uses enzymes to digest organic growth. It’s non-toxic, biodegradable, and safe around plants and animals. I’ve used it on grass next to stones with no yellowing. That said, don’t dump gallons of it into a pond or stream. Use common sense. I still collect my rinse water out of habit.