Product Summary Tower Garden Mineral Blend is the proprietary plant food that keeps your crops thriving. Specially formulated with essential minerals and trace elements, it supports strong root development, vibrant growth, and nutrient-dense harvests. Safe, easy to mix, and designed for Tower Garden’s aeroponic system, it provides everything your plants need for success.  Please contact Customer Care with any questions about your order.  What's Included One gallon of Mineral Blend A One gallon of Mineral Blend B Dedicated customer support and comprehensive growing resources to help at every stage of your Tower Garden Product Details. Ingredients Mineral Blend A  Total Nitrogen (N) – 2.0% Calcium (Ca) – 1.0% Chelated Iron (Fe) – 0.05% Derived from: Calcium Nitrate, Iron Sodium EDTA  Mineral Blend B  Available Phosphate (P2O5) – 1.0% Soluble Potash (K2O) – 3.0% Magnesium (Mg) – 0.5% Sulfur (S) – 3.0% Boron (B) – 0.01% Copper (Cu) – 0.001% Manganese (Mn) – 0.01% Molybdenum (Mo) – 0.0005% Zinc (Zn) – 0.005% Derived from: Potassium Nitrate, Potassium Sulfate, Magnesium Sulfate, Boric Acid, Copper Sulfate, Manganese Sulfate, Sodium  Molybdate, Zinc Sulfate    Directions In general, you should mix 20 mL of Mineral Blend A and 20 mL of Mineral Blend B with each gallon of water you add to your Tower Garden reservoir. But there are a couple of exceptions:  For a Tower Garden full of small seedlings, use half-strength nutrients (i.e., 10 mL of A and 10 mL of B per gallon of water). After about three weeks, you can increase the solution to full-strength. During hot months—when the water evaporates from the reservoir more quickly—use half-strength nutrients (or add full-strength every other time you fill the reservoir).