Roots Organic Formula 707 is a unique, ready-to-use soil. It was created by Aurora Innovations and is different from their other potting mixes. It has greater water holding capacity, less perlite and pumice and specific ingredients for large container gardening. In fact, the bag itself is a 30-gallon grow bag containing just less than 20 gallons of the finest quality potting mix. Just punch holes in the bottom, cut off the top and plant. Made from only the finest ingredients including: coarse peat, coco fiber, compost, perlite, pumice, worm castings, bat guano, fish bone meal, soybean meal, feather meal, kelp meal and much more.