CaMg+® is the ideal supplement to provide a natural source of Calcium and Magnesium, critical elements in a plant's growth cycle. CaMg+® is biologically catalyzed from oyster shell, dolomite lime and natural plant extracts. Through the use of organic compounds, CaMg+® increases calcium and magnesium transport into the plants. This optimizes plant metabolism, enhancing growth and creating healthier flowers and fruits. Some sizes may not be stocked in all locations. Item will not ship UPS. Must ship on a pallet flat rate only.