Plants and trees need silicon to build strong cell walls and maintain maximal metabolism. Advanced Nutrients Barricade potassium silicate formula will substantially strengthen your plant's vigor by increasing cell wall stability and aiding internal functions. This product was designed based on intensive horticultural research that monitored growth rates and health on a weekly basis. Advanced Nutrients Barricade contains the highest concentration of non-diluted potassium silicate and was found to be a superior formulation when compared to all other products on the market