Royal Gold Basement Mix is unlike any other potting soil on the planet! Developed through years of research, and perfected in Humboldt County, California, Basement Mix is the highest quality soil mix on the market. Each unique component has been hand selected to ensure the highest quality and consistency. Only lightly charged with organic nutrients, this mix allows the gardener to feed often, supplying all major NPK with any complete nutrient system. Although Basement Mix was originally developed for "slow drip" or drain to waste systems, gardeners have enjoyed success using several other gardening techniques including ebb and flow or top feeding in beds or containers of any size. Royal Gold Basement Mix has also been known to grow large "smiles" throughout Northern California and Colorado!