Great White Granular 1 is an OMRI approved organic beneficial substrate inoculant. It contains a superior blend of single species mycorrhizal fungi (Glumos Intraradices) that once established, increase the surface area of your root system 100 – 1,000 times. This greatly increases the nutrients and water available to your plant, what results is a larger more robust plant. Partner this up with a diverse blend of beneficial soil bacteria that help cycle nutrients to your plant and you have one seriously alive and dynamic substrate! Use at planting time, when transplanting or add to existing plants. Don’t plant without it!