don't buy it...make it! :black dirt, fireplace ash & charcoal, manure(preferably cow), straw or forest litter, grass clippings, kitchen scraps, fish bone meal, bat guano, azomite, ground oyster shells, etc. ...to really get it going, get some biodynamic compost starter from josephine porter institute for applied biodynamics- it's cheap, yet worth more than gold! just get it and apply to the pile...it'll take a few months to get the finished product, but you'll have the best soil in the county for sure...it comes out in the overwhelming gushy smells, and the best possible taste!