Jack’s Nutrients 7-15-30 Finish FeEDHighest quality, truly soluble nutrients on the market. You’ve always been told to to finish strong. This formulate is ideally formulated for this purpose. It provides your plants with:Low Nitrogen (N)High Phosphorus (P)Very high Potassium (K) contentFormulated to keep the whole plant happy to the end of its crop cycle. This formula works for many different controlled environments. Developed to promote a robust plant with high quality nutrients at the right ratio for plant uptake during this final stage of growth. With no calcium in the formula, it may be advised to evaluate your water source and plan to add additional Calcium as in Jack’s Part B or YaraLiva CALCINIT (see our other items for sale) to supplement your water source. This item comes packages in a heat-sealed, resealable bag by us for your convenience. Shipped via USPS Priority.