FoxFarm® 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.