Tomato maniacs and vegetable enthusiasts take note: This 100 percent organic fertilizer is formulated with an eye toward abundant harvests. Graded 5-6-6 NPK (this code indicates the percentage of nitrogen, phosphorus, and potassium by weight), it also contains calcium which helps protect tomatoes from blossom-end rot. This formula helps plants develop the strong stems needed to support a generous crop of hanging fruit. Easy to use, the fertilizer is in dry, granulated form that can be scattered over the garden where needed and gently mixed into the soil around your plants with a fork or trowel. Listed by the Organic Materials Review Institute (OMRI). 5lb bag.