Roots Organics Formula 707 is a ready to use soil created for a special kind of gardener -- one who wants to control his own destiny. Formula 707 is different from the other potting mixes. It was designed with greater water holding capacity, less nutrients, less perlite, and less pumice, along with specific ingredients for large container gardening. In fact, the bag itself is a 30 gallon grow bag, containing about 20 gallons of the finest quality potting mix. Just punch holes in the bottom, cut off the top, and plant.