A.R.Plante Materials & Earthworks, LLC

08/10/2026

Where does the brown bag actually go?

Most of the time it ends up somewhere like us. A facility that takes in raw horticultural waste and turns it into compost, mulch, and soil blends that go back out to landscapers, garden centers, farms, and right back into the yards those leaves came out of. One of the few genuinely closed loops left in this country.

The scale is bigger than most people realize. The EPA puts yard trimmings at 35.4 million tons generated per year about 12 percent of everything in the municipal waste stream. Massachusetts has banned leaf and yard waste from disposal since 1991. That regulation is the reason this industry exists.

Here is the part nobody talks about.

Before anything gets processed, someone has to stand at that pile and pull out what does not belong. The plastic housing assembly that ended up in your bushes after a winter accident. The bag that went out Tuesday because the truck was coming and it was right there.

That is a person doing that all day. And nationally, composting facilities spend an average of 21 percent of their operating costs on contamination removal. A fifth of the budget spent on protecting the product from material that was never supposed to arrive.

Two seconds on your end saves real work on the other end.

When horticultural waste stays horticultural waste what comes out the other side is worth having. Every 1 percent increase in soil organic matter allows an acre of soil to hold roughly 16,500 additional gallons of plant available water. Drought resilience, deeper roots, carbon in the ground.

Leaves, grass, and brush become all of that.

Fall cleanup is coming. Yard waste in the yard waste bag. Trash in the trash.

That is the whole thing.

📞 (508) 807-7210
📧 [email protected]
🌐 www.ARPLANTEMATERIALS.com

Plante with the Best! 🌿

08/07/2026

Three Products. One system. Each one has a job.

First Leaf — STEP 1 · START IT
Seed starting and seedlings. Fine, light, and built to give new growth the best possible beginning. When you are working with seed or a young transplant the mix needs to be gentle, consistent, and clean. First Leaf is that bag.

Deep Root — STEP 2 · PLANT IT
Planting, beds, borders, and containers. When the seedling is ready to move or you are putting something directly in the ground, Deep Root gives the root system what it needs to establish and grow. This is the workhorse of the three.

Plante's Platinum Super Fine — STEP 3 · FEED IT
Topdressing, amending, and blending. Screened fine enough to move through a topdresser, cover seed, and blend cleanly into any mix. No bark chunks. No coarse material. Just super fine OMRI Listed compost that does what a topdress compost is supposed to do.

Every bag OMRI Listed. Retail bags coming soon to independent garden centers and nurseries across MA and RI.

Start it. Plant it. Feed it.

Landscapers, nursery industry, and farmers you do not have to wait.
All three products are available now in 2 cubic yard bulk sling bags and ready to order.
Same OMRI Listed material, same standard, built for your operation. Call or email us to get your order in.

📞 (508) 807-7210
📧 [email protected]
🌐 www.ARPLANTEMATERIALS.com

Plante with the Best! 🌿

08/06/2026

If you are a business professional, agronomist, landscape contractor, horticulturist, soil scientist, or anyone working in the green industry we would like to connect with you on LinkedIn.

We are building out our presence there with a different kind of content than what you see on our other channels. Deeper dives. Trade focused articles. The kind of conversation that does not fit in a short social post.

We are calling it what it is from greasy wrenches and equipment to microbes and mycelium. The full picture of what it takes to run a serious organic composting and soil blending operation in New England.

If that sounds like something worth following give us a look and hit follow. We are just getting started over there and we think you will find it worth your time.

Search A.R. Plante Materials and Earthworks on LinkedIn.

📞 (508) 807-7210
📧 [email protected]
🌐 www.ARPLANTEMATERIALS.com

Plante with the Best! 🌿

08/06/2026

August is here and if you are in the lawn care business you already know what that means.

Fall renovation season is right around the corner. Aerations, slice seeding, overseeding, topdressing the jobs that are getting priced out right now are going to be getting done in the next six to ten weeks. The landscapers who plan their materials now are the ones who hit the ground running when temps break and conditions are right.

So let's talk about what you are putting down after that aeration and overseed because this is where a lot of companies leave money on the table and results on the field.

Most topdressing operations are using sand, loam blends, or a basic compost. Here is what we are offering that nobody else in this area can.

Our ¼" OMRI Listed compost is the only product of its kind being produced in this region. Screened to a super fine quarter inch particle size it flows through topdressers cleanly and evenly no clogs, no clumping, consistent coverage across the entire application area.

But here is what makes it more than just a topdressing material.

This is a biologically active, living compost. When it goes down after an aeration it drops directly into those cores and gets active microbial life, humic acid, and slow release nitrogen right down to the root zone exactly where new seed needs support to germinate and establish. You are not just covering the surface. You are putting biology where it counts.

W**d seed load? Managed out through our temperature monitoring program. What goes down is clean.

Now is the time to lock in your material needs for fall. We deliver in bulk and we are open for pickup Monday through Friday 7am to 3pm in West Bridgewater.

📞 (508) 807-7210
📧 [email protected]
🌐 www.ARPLANTEMATERIALS.com

Plante with the Best! 🌿

08/05/2026

08/05/2026

52.8 yards of our in house 80/20 compost biochar blend loaded up and heading to a local island. 🚛

Island soils especially here in New Englandtend to be sandy, low in organic matter, and drain fast. Great for some things. Tough on plantings that need consistent moisture and biology at the root zone. This blend was built for exactly that kind of challenge.

The OMRI Listed compost brings immediate biological life, organic matter, and slow release nutrients into a soil profile that is often lacking all three. The biochar we use is a locally sourced regional OMRI Listed biochar clean, verified, and approved for organic use. It creates a permanent porous structure that holds moisture and nutrients right at the root zone instead of letting them drain straight through. In sandy island soils that combination makes a real measurable difference not just this season but for years to come as the biochar builds permanent carbon in that soil profile.

What makes our blend different from someone mixing this themselves in a loader bucket is how we do the final blend.

We run every batch through our Edge FTS75 a dedicated blending unit that ensures a consistent even mix throughout the entire load. No heavy pockets of biochar concentrated in one spot. No uneven ratios from one end of the pile to the other.

This matters more than most people realize. Biochar hot spots areas where concentration is significantly higher than the rest of the mix can temporarily tie up nitrogen and work against the planting rather than for it. A consistent blend eliminates that risk entirely and gives every cubic yard the same performance.

That is what professional in house blending looks like. 💪

📞 (508) 807-7210
📧 [email protected]
🌐 www.ARPLANTEMATERIALS.com

Plante with the Best! 🌿

---

07/31/2026

Every time someone talks about compost, the conversation eventually turns to contamination.

That's a fair question.
But maybe we're asking it in the wrong place.

Compost and soil are some of the most tested materials you'll ever use. The results are often reported in parts per billion (ppb) a measurement so small it's hard to visualize.

Here's some perspective.

One part per billion is equal to one second out of 31.7 years.

Or imagine adding one dropper of water to an Olympic-sized swimming pool.

That's the level we're talking about.

Now consider this...
Studies have found household dust can contain well over 100 ppb of certain PFAS compounds, while a compost sample may test at 0.50 ppb.

The soil isn't creating the problem.
It's receiving it.
The contaminants we find in soil don't magically appear there. They originate from the products we manufacture, use, and dispose of every day. Soil simply becomes the final destination.

That's why feedstocks matter.
At A.R. Plante MaterialsandEarthworks, we made the decision to build our products differently.

✔ No biosolids.
✔ No sludge-derived materials.
✔ No manure.
✔ OMRI Listed products built to National Organic standards.

Could we build compost cheaper? Absolutely.
But we'd rather provide peace of mind.
Healthy soils start with clean inputs, and that's a standard we refuse to compromise.
Because at the end of the day, we're not just making compost.

We're protecting the foundation of the food we grow, the landscapes we build, and the environment we all share.

Plante With The Best.

07/30/2026

Let's talk about biosolid compost. What it actually is, how it's made, and why it carries elevated risks in horticultural applications.

Biosolid compost starts as treated wastewater sludge sewage that gets composted with bulking agents like wood chips, yard waste, and sawdust, and heated to temperatures intended to kill pathogens. The end result gets marketed as an organic soil amendment and a large percentage is sold to landscape designers and horticulturists for use in landscape installations.

Here is the problem.

Wastewater treatment plants do not break down PFAS compounds. The same amount of PFAS that goes into a treatment plant at the beginning comes out at the end of the treatment process and it is retained in the biosolids.

According to the EPA approximately 60% of all US generated biosolids are currently land applied and legal changes to permitted land application are expected as states increasingly restrict the practice. Maine has already banned it. Massachusetts has legislation in progress.

PFAS concentrations in biosolids are currently not federally regulated which means right now there is no legal requirement for a supplier to tell you what PFAS levels are in the biosolid compost they are selling you.

And it is not just PFAS. Biosolid compost can carry pharmaceutical residues, heavy metals, and microplastics from everything that goes down the drain in a modern city.

This is exactly why we do not allow biosolids anywhere near our operation. And it goes further than just our product.

Think about it like raw chicken in a professional kitchen. Even if you are not serving chicken that night a cutting board or knife that touched raw chicken carries contamination risk to everything else prepared on it. The same logic applies here. If a truck hauls biosolid compost and then hauls our OMRI Listed product the risk of cross contamination is real. Our equipment, our trucks, and our yard have never touched biosolid material. Not once.

That is not a coincidence. It is a decision we made from day one and one we will never walk back. 💪

📞 (508) 807-7210
📧 [email protected]
🌐 www.ARPLANTEMATERIALS.com

Plante with the Best!

07/28/2026

In today's world we are a society of out of sight, out of mind.

In Massachusetts we have regulations around what can and cannot go into the landfill. Back in 1991 the state made yard waste no longer accepted at landfills leaves, grass, brush, garden waste, all of it. Some towns built green waste recycling programs. Some trash companies run periodic horticulture waste pickup weeks. But that lawn bag has to go somewhere.

At A.R. Plante we take that horticulture waste and turn it into finished compost in 4.5 months. And that process is anything but passive.

We monitor our piles three times a week with a compost thermometer and we are now trialing a unit that gives us real time temperature data at two depths simultaneously. That matters for two reasons.

A well managed compost pile fluctuates in temperature and that fluctuation is the life cycle at work. Bacteria and fungal communities breaking down carbon rich feedstock. After a few days at a key temperature threshold the pile kills off harmful bacteria and w**d seeds. Those same readings tell us exactly when to flip the pile and keep things moving.

We run a five step model and every step is logged.

Raw and unshredded. Shredded flipped and stacked. Second flip. Third flip. Screened flipped and cured.

Data from each stage gets reviewed internally alongside quarterly lab reports then it goes in front of OMRI for independent review and certification.

This is not a pile of yard waste sitting in a field. It is a monitored, documented, living biological process with a paper trail behind every batch.

Why does this matter? Because healthy soil filters our water, grows our food, and supports every ecosystem above it. Operations like ours that take what gets thrown out and turn it into something that rebuilds the ground are what regenerative soil practices actually look like in the real world.

The lawn bag you put out at the curb does not disappear. At A.R. Plante it becomes something worth putting back into the earth. 🌱

📞 (508) 807-7210
📧 [email protected]
🌐 www.ARPLANTEMATERIALS.com

Plante with the Best! 🌿