House & Garden®, Magnesium Boost® (1 Liter) Heat Mats End handles

End handles

Crafted from high-quality waterproof polyethylene

mites and powdery mildew

Twenty percent calcium availability offers a lot of bang for your buck

Endomycorrhizal fungi penetrate root membranes

House & Garden®, Magnesium Boost® (1 Liter) Heat Mats End handlesHouse and Garden Magnesium Boost (1 Liter) Magnesium Boost is perfect for revitalizing your plants when they're needing a little extra magnesium. It is especially effective for longer vegetative times, and in strains with thicker leaves and certain indica dominant hybrids. You can usually tell when your plants are deficient when the leaves start turning yellow while the veins stay green in this scenario, a little magnesium goes a long way. By