All fertilizer labels must follow the same format according to the state fertilizer laws. For example: Blossom Booster 10-30-20. The first number is for Nitrogen. This product contains 10% Nitrogen. The second number is for Phosphate. This product contains 30% Phosphorus as P2O5. The third number is for Potash. This product contains 20% Potassium as K2O. These three elements; Nitrogen, Phosphorus and Potassium are the major elements in any plant food. Carbon, Hydrogen, Oxygen, Calcium, Magnesium and Sulfur are the secondary or minor elements. The water, soil and air provide most of these elements to your plants. Manganese, Iron, Copper, Boron, Zinc and Molybdenum are the trace or micronutrients. All Jack's Classic^® products contain these trace elements. Although they are present in small amounts, they are just as important as the major and minor elements in making your plants grow. The guaranteed analysis on each package of fertilizer tells you how much is in each product. Jack's Classic^® products contain these elements in a highly soluble form which means they will go completely into solution in water and when applied to your plants they will be taken up and utilized to make your plants grow to their fullest potential.


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