If you want the biggest fruits and flowers, CANNA PK 13/14 is the right product for you. CANNA PK 13/14 is a mixture of top quality nutritional minerals that stimulate flowering. It's easy to use and makes for high yields. PK 13/14 is suitable for any growing medium. Furthermore, it only needs to be applied once to the nutrient reservoir. If you do this at the right moment, you will get astonishing results! CANNA PK 13/14 is a high grade mixture of phosphorus and potassium that is added during the flowering phase. Both elements play a big role during the generative phase of plants. Thanks to a special production process CANNA has succeeded in combining pure phosphorous and potassium in very high concentrations. This makes PK 13/14 available to the plant quickly and directly.