Success Nutrients Flowers: Flowering Phase Nutrients - 1 Gallon - Case of 4Flowers is the backbone to achieving high yields and quality product. Introducing Flowers in the Vegetative stage will ensure a robust product down the road. Flowers encourages the plants to develop as much as possible in the Flowering phase. Flowers is very effective in both Soil and Hydroponic gardens. Use in conjunction with Trees and Micro for the best results. Nutrient Composition Macronutrients (N) 0 (P) 5 (K) 4 (Ca) 0 (Mg) 1. 5 (S) 1