Bloom is a no nitrogen phosphorous formula that is used to promote buds, flowers, fruit and vegetables. Use at first sign of budding and throughout the production period. It is also good for plants that do not require any nitrogen, such as cactus and legumes. This formula is approved by Organic Materials Review Institute for organic crop production. Contains: 3.0% Available Phosphate, 1.0% Soluble Potash and derived from Steamed Bone Meal, Marinebird Fossilized Guano, Bat Fossilized Guano, Sea Kelp, Natural Sulfate of Potash, and Molasses.