Root Farm Tomato Veggie Supplement Nutrient Part 2 Nutrient supplement for hydroponic gardening. The second part of a simple 2-part hydroponic nutrient system. Specially designed for growing hydroponically. Provides phosphorus, potassium, magnesium, and sulfur. Contains an extra boost of phosphorus to promote seed and fruit formation, ideal for use with tomatoes and vegetables. Added boron due to increased calcium concentration during mature growth, which aids in cell wall integrity. Designed to be combined with Root Farm Base Nutrient Part 1, providing key nutrients plants need to flourish from the start through all phases of their growth cycle. Can be used with water based systems or with soil-less growing media. Size 1 Qt., Concentrate or Ready To Use Concentrate, Product Form Liquid, Formulation 1-5-7, Pkg Qty 1, Package Type Bag