Why throw out the soil in last year's containers? Our organic Booster Mix replaces the nutrients that the plants used up, so this year's plants get a fresh start. One bag is enough to revitalize 96 dry quarts of soil — at big savings for you! This potent, all-organic formula includes a complete diet of nutrients and trace elements to keep plants lush and healthy. Just 4 to 8 tablespoons recharges a quart of soil. Made in Vermont.