Hi-Brix Grow & Hi-Brix Bloom are 2 part plant foods for hydroponics and soil. Based on the famous Hi-Brix "Molasses for Plants" formula, Hi-Brix Grow Part A and Hi-Brix Bloom Part B are complimentary 2-part plant food formulas for indoor/outdoor plants in soil or hydroponics. Parts A and B are to be used together through all phases of plant development. Use the Original Hi-Brix "Molasses for Plants" for a dynamite finishing formula. Not only is it easy, but the ratios can be varied to fit individual needs.