The product to enhance soils and crops
Wood ash has been used by farmers to improve soil and crop production for centuries. However, wood ash was not available as a commodity for large-scale use until the 1980s when several wood-fired electrical-generating power plants were built throughout the Northeast. The benefits of these wood-fired power plants were two-fold: the production of local, clean, renewable energy, and the other product generated - organic wood ash, marketed as pH+Plus.
pH+Plus is an organic fertilizer unique to New England — a heritage product essential for any serious farmer or gardener.
Why use pH+Plus?
pH+Plus is the perfect product for Northeastern soils. It is an organic fertilizer with the added benefit of fast-acting liming. Great for spring and fall use.
- Farmers - For the past 15 years farmers have enjoyed the benefits of using this commercial-grade pH+Plus to sweeten their fields and improve their crops. pH+Plus naturally improves soil pH and provides essential nutrients like potassium, magnesium, and zinc. For farmers, pH+Plus has become a cornerstone of soil fertility.
- Topsoil purveyors add commercial-grade pH+Plus to their loam to ensure proper soil pH, and to achieve a rich, dark color. By adding pH+Plus to loam, the enhanced topsoil can be sold for a premium price and guarantees topnotch performance.
- Compost facilities use commercial-grade pH+Plus to take care of odors. The carbon in pH+Plus is highly effective in eliminating odors generated through the composting and curing processes. pH+Plus is an excellent agent for controlling odors from any putrescible organic wastes.
Bulk pH+PLUS is OMRI Listed®
OMRI Listed products may be used on operations that are certified organic under the National Organic Program. pH+Plus is derived from natural wood ash. It is a non-synthetic soil amendment approved for use by organic growers.
How can I get pH+Plus in bulk?
Contact RMI for details on delivery of bulk pH+Plus. Staff agronomists will assist you in determining the best application for your project, including site, soil and nutrient management considerations. RMI technical support and Heart & Soil® product quality ensures that you get the results you are looking for.
Deliveries of bulk products require a 100-yard minimum delivery. Pricing and trucking conditions vary based on consumer location.
OMRI Listed® products may be used on operations that are certified organic under the USDA National Organic Program.
For more information about our RMI services or products, please contact us at RMI@RMIrecycles.com.





