SUPERthrive Foliage-Pro 9-3-6 has the ideal N-P-K ratio, 3-1-2, recommended by the University of Florida for tropical foliage plants (houseplants). The formulation contains the 6 essential macronutrients and the 10 essential micronutrients that every plant needs. Foliage-Pro won't burn your plants. It eliminates salt build-up when used at recommended rates. Urea free. Not 100% organic. Concentrated. 8oz.