Sunleaves Silica is a powerful, concentrated silicic acid product formulated to improve plant structure, promote cell wall strength, and increase your plants’ ability to withstand environmental stress. It boasts 2.5% Monosilicic Acid and 1% plant available silicon while also containing added beneficial micronutrients. It is 100% soluble and is compatible with all growing mediums. In nature, microbes in the soil slowly break down silicon into a plant available form known as Monosilicic Acid, but in a controlled garden environment, this key element is often missing. Sunleaves Silica feeds bio-available Monosilicic Acid right to the plants roots and allows them to thrive.