PLAGRON - PK 13/14 - 10LPK 13 14 Plagron is a naturally pure mineral origin fertilizer and flowering stimulator from Gabi, a high quality bio mineral fertilizer and provides your plants with the extra dose of phosphorus and potassium, essential elements during the flowering phase of the plant . Phosphorus and potassium are responsible for the cellular structure of plants, giving them the necessary consistency and stability and also promotes the plant's resistance to diseases