Peters fertilizers have been the #1 choice of professional greenhouse growers since 1947. The “Jack’s Classic” brand of fertilizers represents the highest-quality fertilizers formulated by Jack Peters for home gardening enthusiasts. No other fertilizer comes close in the quality of it micronutrients, complete solubility, and ease of use. Each fertilizer is packaged in a tight sealing plastic tub with a convenient measuring scoop. We guarantee you’ll agree this is the best fertilizer you’ve ever used, or your money back.