Plant Amp™ is a chelated Calcium product that also contains a proprietary organic plant stimulating ingredient. Calcium is the basis of cell wall development in a plant and the Calcium in Plant Amp™ is extremely soluble, providing an easily utilized source of Calcium. Plant Amp™ is 100% organic and can be used throughout the entire growth cycle to optimize a plant's growth. Item will not ship UPS. Must ship on a pallet flat rate only.