CANNA PK13/14

Description

CANNA PK 13/14 is one of the most widely used and trusted late-flowering phosphorus and potassium boosters in professional indoor growing. Formulated with a precise 13:14 ratio of phosphorus pentoxide to potassium oxide, CANNA PK 13/14 provides the targeted mineral nutrition that plants require during the peak flowering phase — when the demand for these two macronutrients reaches its maximum and when the quality of PK nutrition supplied directly determines the size, density, and final weight of the developing flowers and fruits.

The Role of Phosphorus and Potassium in Late Flowering

The final three to five weeks of flowering represent the period of greatest metabolic intensity in the plant’s entire growth cycle. Cells in developing buds are dividing rapidly, accumulating dry weight, and synthesising the complex secondary compounds that determine harvest quality. Both phosphorus and potassium are central to these processes. Phosphorus is the key component of ATP — the molecular currency of cellular energy — and is directly involved in the cell division and energy transfer reactions of rapid flower development. Potassium activates over sixty known enzyme systems, regulates the osmotic processes that drive water and nutrient transport, and is directly involved in the accumulation of sugars and starches in developing flowers. CANNA has calibrated the 13:14 ratio through decades of growing research to provide both elements at a balance that supports peak performance without the antagonistic effects that can occur when one element is provided in excess relative to the other. At The Horticulture Company, CANNA PK 13/14 has been one of our top-selling bloom additives since we opened in 2017. It is a product with an exceptional track record across many different growing systems and variety types.

When and How to Use CANNA PK 13/14

Use CANNA PK 13/14 for one to two weeks during the peak of flowering — typically weeks four to six of an eight-to-ten week flowering cycle. Apply at 15ml per 10 litres of nutrient solution alongside your regular base nutrient. Do not use throughout the entire flowering phase — this concentrated PK supplement is designed for a defined peak-dose window. Always check combined EC and pH-adjust to 5.8–6.2 for coco or 6.0–7.0 for soil before applying.