Simply Silica 8oz Concentrate by Supreme Growers 8oz Makes 47 Gallons - $14.99 FREE SHIPPING Simply Silica is a liquid fertilizer formulated with potassium Silicate that promotes the growth of strong plant tissues.The 8oz concentrate of Simply Silica makes 47 gallons of ready to use product.Use Simply Silica as a soil drench or foliar spray once a week from start of vegetative growth throughout flowering and fruiting. Simply Silica is designed to supplement your existent nutrient program, not replace it. It is safe for reservoirs. It will not clog drippers.Simply Silica improves a plant's natural resistance to environmental stresses, including heat and drought.Silica is a mineral supplied to plants as a nutrient that provides rigidity and structural endurance for crops. Silica increases root growth, boosts yield, and enhances crop quality.