High levels of potassium and silicon help plants build more robust cell walls, increasing overall stem and leaf strength. Additional benefits include decreased susceptibility to sucking insects (aphids, thrips, spider mites) and disease fungi, improved photosynthesis and increased ability to withstand environmental stresses. This powdered potassium silicate concentrate dissolves in water for easy application. Guaranteed Analysis:Soluble Potash (K2O)…………….3.7%Silicate (SiO2)……………..………7.8%Suggested Application Rate:Create Liquid Concentrate: DISSOLVE 560g in 1 GALLON WATERApply Liquid Concentrate: ¼ - ½ tsp (1.25-2.5 ml) per gallon of water or nutrient solution