FoxFarm Grow Big Size:1L The Black Box also features

The Black Box also features metal framing made of strong

Steel Tape

With its 29 % concentration

which is 100% guaranteed to give you stronger roots and better harvests

Works with any branded fertilizer and additive products

FoxFarm Grow Big Size:1L The Black Box also featuresFoxFarm Grow Big Liquid Plant Food (6 4 4) is a fast acting, water soluble fertilizer for lush, compact vegetative, growth. Use Grow Big early in the season when young plants need an extra boost. Containing earthworm castings and Norwegian kelp, this special brew encourages sturdier, healthier stems and leaves, while also providing enough nutrients and trace minerals to create healthy branching later in the season for more abundant buds and blooms.