B.C. BloomB. C Hydroponic Nutrients are a power packed trio for nurturing generous vegetative crops and extraordinary floral growth. B. C Boost, B. C Bloom and B. C Grow are complete, professionally formulated, highly concentrated fertilizing agents. Unlike other brands, which include micronutrients in only one part of the formula, both B. C Grow and B. C Bloom contain a full complement of micronutrients, which are bolstered by the added calcium and iron in B.