Roots Organics Green Fields is a sea-nutrient-based growing mix designed for both the vegetative-and flowering phases of mature plants. Green Fields 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.