The yield enhancing attributes of mycorrhizal fungi have co-evolved over millennia and have been the focus of 30 years of intensive research. Now growers, landscapers and homeowners can apply the miraculous relationship of plant and mycorrhizal fungi and improve plant growth the natural way. Ask which type of mycorrhizae is right for what you are growing. You can mix into soil, dip roots into it, or water it in. Amazing stuff!