Roots Organics Greenfields was designed with greater water holding capacity, less perlite and pumice and specific ingredients like fish & crab meal, worm castings, bat guano and kelp meal. A super-premium potting mix, it's perfect for large containers and heavy-feeding plants. Packaged in a 10-gallon ready to use grow bag. Just cut or poke holes and plant directly in the bag. Ingredients: Coarse peat, coco fiber, compost, perlite, pumice, worm castings, bat guano, fish meal, crab meal, fish bone meal, soybean meal, feather meal and kelp meal.