For increased growth, fruiting and flowering potential, GreenGro Mycorrhizae is a great option. It promotes nutrient storage and uptake, effective root systems, and great soil structure and ecology. This water-soluble product reduces drought stress and promotes more efficient use of available moisture and nutrients. Both GreenGro Ultra-Fine Mycorrhizae and GreenGro Granular Plus Mycorrhizae can be used indoors or outdoors, in hydroponics, aeroponics or in soil.