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Providing the world with advanced

mycorrhizal fungi & fertilizer products for over 28 years!

Who is RTI?

Reforestation Technologies International (RTI) is the oldest and largest producer of arbuscular mycorrhizal fungi in the United States. RTI pioneered the biodegradable transplant fertilizer pack now commonly used in many applications through various industries around the world. RTI continues to provide high-quality fertilizer products and biological inoculants for forest regeneration, habitat restoration, mine reclamation, agriculture, landscaping, home gardening, and hydroponic markets. RTI also offers a customizable program for manufacturers, formulators, and private labeling.

What is Mycorrhizae?

Mycorrhiza directly translates as "fungus-root," which refers to the beneficial partnership between the roots of a host plant and a fungus. These beneficial fungi colonize plant roots and become a true extension of the root system. Mycorrhizal fungi are very efficient at mining and absorbing nutrients and water compared to plant roots.

RTI has established a unique process for growing and cultivating mycorrhizal fungi. Mycorrhizal fungi grown "in-vivo" promotes stronger biological genetics for quicker adaptation to soil and weather conditions. RTI produces over 6 species of arbuscular, endo-mycorrhizal fungi.


Every batch of mycorrhizal fungi is quality control tested and certified with the highest standards. Our goal is to provide our customers with the highest quality mycorrhizal inoculant available in any market. 

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Biological Soil Inoculants

RTI has developed a world-class reputation for producing quick-colonizing, biological root inoculants. RTI specializes in "in-vivo" arbuscular mycorrhizal fungi, growth-promoting bacteria, and other beneficial inoculants to help maintain healthy soil and plant growth.

RTI revolutionized the forestry industry with its development of the transplant "pak" technology. The paks are capable of being filled with natural or polymer-coated fertilizer, enabling the controlled release of nutrients over an extended period of time, conveniently packaged in a biodegradable transplant packet. 

Transplant Pak Technology

Custom Products & Private Labeling

RTI provides various business-to-business services for manufacturers, formulators, and private labeling. Contact our knowledgeable team for more information about custom microbial blends and our other manufacturing capabilities.

RTI's Premium Products

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RTI produces a variety of transplant fertilizer packs and land regeneration products for forestry, habitat restoration, and mine reclamation projects.

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Biological and nutrient delivery products to help support sustainable agricultural crops.

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Biological and nutritional inoculants for residential and commercial landscapes.

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Pure biological inoculants proven to increase plant performance & crop yields.

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An ideal blend of beneficial soil microbes and organic nutrients for consumer gardeners.

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