Roots Organics Soilless coco mix is specifically engineered to allow you to feed heavier for greater yields, while reducing problems with fertilizer-salt toxicity. Plants need to be fertilized in order to thrive and provide you with larger harvests. Roots Organics Soilless mix allows you the ease of hydroponics with the benefits of a natural and organic soil. Coco fiber is an environmentally friendly growing medium that is quickly becoming known for astounding gardening results. Coco fiber, a by-product of rug and broom-making in East Asia, is a renewable resource. Ingredients: Perlite, Coco Fiber, Pumice, Earthworm Castings, Bat Guano, Leonardite, Volcanic Rock Dust, Volcanic Ash, Kelp Meal, Greensand. Also contains beneficial microbes: Funneliformis mosseae, Rhizophagus intraradices, Septoglomus desertícola to enhance uptake of plant nutrients, increase roots biomass, and help container grown plants resist stress