Xtreme Gardening Mykos, 50 lb.Unleash the power of your soil with Mykos pure mycorrhizal inoculum Xtreme Gardenings natural root enhancer. Mycorrhizae have been shown to increase the availability of nutrients and moisture required for plant growth, while improving soil structure. Mykos provides a connection which helps bridge the gap between roots and the nutrients present in soil and hydroponic media. Beneficial Microbes! Helps Roots Mine More Nutrients Improve Root Structures