About this item IMPROVES PHOTOSYNTHESIS AND REDUCES LEAF YELLOWING: TPS Canopy Boost Foliar Spray improves plant function and kick-starts photosynthesis. SUPPORTS VIGOROUS CANOPY AND ROOT GROWTH: Canopy Boost leaf spray stimulates metabolism, increasing photosynthesis causing canopy growth. It also sends powerful organic plant growth hormones to the root-zone, which causes root development. PROMOTES PHOTOSYNTHESIS: TPS Canopy Boost spray contains powerful bioavailable magnesium, a key component of photosynthesis. SAFE ON ALL PLANTS AND ENERGY DENSE FOLIAR SPRAY: All of TPS’s fertilizers and supplements are nutrient dense, reducing waste and making sure you don’t pay for water to be shipped. DESIGNED TO BE SUSTAINABLE: Every ingredient and every process was designed to keep sustainability in mind. TPS Nutrients chooses only the best and most renewable materials to build these products.