Bionova’s PK 13-14 is the perfect composition as a main flowering stimulator. Phosphor develops a healthy and extensive root system and an exuberant flowering. Potassium prompts the flowering potency in the plant. The combination of these two components in a food grade mineral form is the original Bionova’s super bloomer. Plants directly absorb all food grade minerals which gives you optimal control of your plants. Bionova is the inventor of the original composition: PK 13-14.