Roots Organics Green Fields container media is a sea-ingredients-based growing mix. GreenFields was designed with greater water-holding capacity, yet it is free-draining for frequent feeding of fast-growing, heavy feeding plants. Green Fields is a ready-to-use soil created with less perlite and pumice and specific ingredients such as fish meal and crab meal, worm castings, bat guano and kelp meal. Experienced gardeners know that a perfect outdoor mix is different than a perfect indoor mix and Green Fields has been proven as an excellent outdoor blend for your fast-growing plants. Ingredients: composted forest material, peat moss, perlite, coco fiber, pumice, worm castings, crab meal, feather meal, fish meal, bat guano, soybean meal, fish bone meal and kelp meal.