• GH Flora Series is the original Building-Block Nutrient System – imitated but never duplicated. • Contains complete Primary, Secondary and Micro Nutrients –for enhanced yields and better crop quality. • Users can adjust mixtures to suit specific plant needs. • Enhances flavor, nutrition, aroma and essential oils in both hydroponic and soil cultivated plants. • Contains highly purified concentrates for maximum solubility. • pH balanced for ease of use. • NASA and Antarctic research scientists choose Flora Series -- because of its superior formulation and reliability. • The General Hydroponics Flora Series is known throughout the world as the industry standard