foliage-Pro® 9-3-6 is a complete nutrition formula that has all 6 essential macronutrients and all 10 essential micronutrients required by plants for optimum growth in any medium. The N-P-K (3-1-2) ratio is recommended by the American Rose Society, the University of Florida and a number of other plant specialists and organizations. This N-P-K ratio is the ideal ratio for most plants including, but not limited to; roses, tropicals, legumes, and cannabis. Foliage-Pro is complete and balanced and, like all our complete formulas, the minerals are in solution and immediately available to the plant.