TPS Nutrients Root Boost is a complete rooting solution, designed to grow strong root systems quickly. Loaded with four strains of mycorrhizae, nine strains of pro-biotic bacteria, and rooting minerals – all meant to stimulate aggressive rooting. Root Boost is also concentrated with a suggested use rate of 1-2mL per gallon . -- TPS’s Root Boost contains not only high concentrations of bacteria and mycorrhizae, but also the food sources for the microbes to feed on. The combination promotes rapid enzyme development and stimulates root growth. Root Boost also contains bio-available phosphorus and potassium that improve water and mineral uptake, which promotes vigorous canopy growth.