Canadian Farmers & Landowners
Join a growing network of Canadian farmers and landowners using wollastonite to improve soil health, boost yields, and cut costs. We supply and spread this mineral-rich crushed rock on agricultural land free of charge; the farmer simply covers the cost of trucking.

Unlock The Power Of Wollastonite
Wollastonite is a sustainable soil amendment sourced locally in Ontario and rich in essential micro and macronutrients. It is applied with a standard lime spreader at a time that is convenient for you and has been approved for use in organic farming systems.
How to Join the Program
We work directly with farmers as partners, not as customers. Unlike a traditional input supplier, UNDO doesn’t sell rock by the bag. Instead, our program members get access to free soil testing, spreading, and ongoing monitoring of their agronomic benefits while UNDO manages the carbon removal process in the background.
Eligible farms are within a 150 km radius of our partner site, Canadian Wollastonite, in Ontario. We focus on this region to reduce the carbon footprint of our operations while ensuring cost efficiency for you. However, there may be occasions where we can extend beyond this, so do get in touch.
We’ll take soil samples before and after spreading and will share these results with you, giving you insights into the long-term impact on your land and crops. We are partnering with farmers who have a pH of 6-7 to maximize the benefits for farmers and carbon removal for our planet.
Wollastonite is applied at 2–4 tonnes per acre using a standard lime spreader. We follow the Canadian spreading season, with peak operations in the Spring, Summer and Fall. We spread before or after harvest to ensure whole, healthy, and intact crops.
Wollastonite is provided at no cost to farmers – your only expense is trucking. In many cases, trucking is subsidised as part of our program. This makes wollastonite a highly affordable and valuable alternative to inputs such as lime and artificial fertilizers.
Farmers Leading the Way to a Healthier Planet
ERW has the potential to lock away up to 4 billion tonnes of CO2 per year – 40% of global targets – and Canada is leading the charge. Proven in lab and field experiments at universities around the world, ERW makes agriculture part of the solution to climate change.

STRONGER SOIL. HEALTHIER CROPS. LOWER INPUT COSTS.
Empowering Canadian farmers with natural solutions that boost productivity and support long-term land resilience.

Join Our Canadian Farmer Program
Canadian farmers are turning to wollastonite to optimize their land and improve profitability. Our program makes it easy – providing free spreading, soil testing, and subsidized trucking so you get the most out of every application.
With a simple, hassle-free process, you can improve soil structure, enhance nutrient availability, and reduce reliance on synthetic inputs.
Check if your farm is eligible today.
“I’ve been applying wollastonite for 8 years, and my fields keep getting better. I get less lodging, and my crops grade higher. Yields are up overall, and the crops seem to handle the weather extremes better. From sod to corn I use wollastonite on a wide variety of crops. Signing up for the carbon project was straightforward. The fact that wollastonite captures carbon is a nice bonus for the planet.”
“We apply wollastonite to our vegetable fields as a carbon-negative source of lime and we have seen consistent increases in quality, shelf life, and drought resistance.”
"Sebastian Farms is a certified organic vineyard in the Okanagan Valley in British Columbia. Wollastonite helps with our vine nutrition and provides nutrients to “toughen” the plants up and make them less vulnerable to pests and disease and some of the extreme environmental conditions we face. We are trying to reduce our carbon footprint every year, but it's the benefits we see in the vineyard that keep us coming back to Canadian Wollastonite. It’s a great product that helps our vines, soils and environment."
"Wollastonite has been the only thing I have added to the soil for my experimental/fragile peach trees, which produced an abundance of lovely-tasting fruit this year. My tomatoes, peppers, squash, and marigolds appear to be on steroids with the use of wollastonite, and I have seen a noticeable difference in my strawberry plants' health as well."
Frequently Asked Questions
Lime provides a quick pH adjustment, but its effects wear off quickly, requiring frequent applications. Wollastonite raises and stabilises pH for longer while also releasing key nutrients like calcium, magnesium, and silicon for lasting soil health and crop resilience.
Wollastonite is most effective in moderately acidic to neutral soils but can provide benefits in a range of conditions. We are partnering with farmers who have a pH of 6-7 to maximise the benefits for your land and carbon removal for our planet.
Wollastonite is suitable for all crops, including pasture, and has been approved by respected organic certification bodies such as OMRI. Research trials have demonstrated increased yields in crops like wheat and pastureland. Wollastonite also improves root strength, enhances nutrient uptake, and boosts resilience to environmental stresses like drought and disease.
We cover the cost of supplying and spreading the rock. We simply ask the farmer to pay for trucking, which is calculated based on the location of your farm. Trucking is subsidized in many cases.
Some benefits, such as pH stabilization and improved soil structure, are noticeable in the first season. Others, like increased crop resilience and nutrient availability, continue to develop over multiple growing cycles.
Wollastonite is spread using standard lime-spreading equipment, making it easy to integrate into current farm operations. Typically applied at 2–4 tonnes per acre, we follow the Canadian spreading season, with peak operations in the Spring, Summer and Fall.
The program is funded by the sale of carbon removal credits. By spreading wollastonite on farmland, we capture and store CO2 from the atmosphere. Our farmers enjoy the soil and crop benefits, while the carbon credits are sold on the voluntary market to fund and scale this initiative.
It’s simple! Contact our team to check your eligibility. We’ll assess your farm’s location, soil type, and spreading logistics to confirm if wollastonite is the right fit for your land.

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