A premium, one-part plant food for use in many types of growing techniques such as hydroponics, soil and soilless applications. Pure Blend® Pro Soil is used in the fruiting & glowering stage to support vigorous leaf and stem formation. It is formulated to be used in soils that have microbes and colloidal particles that tend to bind phosphorus by supplying higher than typical amounts of that element. 1-4-5.