RAW Yucca is made from 100% natural yucca extract from the plant yucca schidigera. It can be used as a wetting agent for nutrient solutions and foliar sprays and is great for flushing excess salts from the root zone. When used on soils, it helps water and nutrients penetrate deeper and more evenly into the root zone. We recommend adding a pinch (1/16 tsp per 5 gallons) RAW Yucca to all foliar, nutrient and flush solutions. A 2 oz package of RAW Yucca makes up to 1000 gallons and the 8 oz package makes up to 4000 gallons.