Long Flowering NPK: 18-12-18 The balanced NPK ratio provides enough nitrogen throughout the whole stage of flowering and the high amounts of phosphorous allow the plants to develop a strong and healthy root system, especially for plants with a long flowering time more than 10 weeks. Maximum Solubility: 1.3lb/gal or 160g/L water Recommended amount for stock solution: 4oz/gal or 30g/L water CONCENTRATION: Concentration gr./Lt. 0.5 1.0 1.5 2.0 EC (mS) 0.7 1.4 2.0 2.6 These values are calculated starting from tap water at medium hardness with EC 0.0