B vitamins assist plants with various functions throughout all stages of growth including efficient uptake of important nutrients, increase plant metabolism, accelerate growth, promote root development and build resistance to environ-mental stress and harsh growing conditions. Vigorous will provide essential vitamins that your plants need to perform efficient distribution of nutrients throughout the plant white maintain a stable and exceptional growth momen-tum. Directions Apply 2 ml per Litre of water for all other weeks of vegetative growth and all of flowering cycle FOR OPTIMAL RESULTS: Apply in full concentration of Vigorous (2 mL per Litre) combinated with recommend concentration (4 mL per Litre) of Quantum Part A & Quantum Part B together for both vegetative growth and flowering cycle. Be sure to check EC & PPM to maintain safe concentration level.