Sour-Dee provides organic carbohydrate and electrolytes to stimulate amino acid production and adds a carbohydrates at the end of the flowering. It contains a low molecular weight sugar source with an emulsion of trace minerals. This combination acts as a compensator as lowering light levels at the end of flowering precipitate drops in photosynthetic rate and ATP production. These carbohydrates provide the plant with the energy it requires to fuel respiration that drives fruit set. Provides an aroma of sour apple. Some sizes may not be stocked in all locations. Item will not ship UPS. Must ship on a pallet flat rate only.