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PK-PRO 33PRO is a concentrated flowering fertilizer that provides phosphorus and potassium in ideal proportions to maximize the yield and quality of your buds. Ideal for all types of crops and compatible with automatic irrigation systems.

PK Pro 33PRO is a bloom booster specifically formulated for the most demanding stages of cultivation, where plants need a high supply of phosphorus (P)** and **potassium (K). These two macronutrients are essential for structural development, sugar production, and the formation of more compact, aromatic, and resinous flowers.
Thanks to its concentrated formula, even a small dose can produce great results without risking plant health due to excess salts. It is suitable for crops in hydroponics, coco, and soil, and adapts to both indoor and outdoor cultivation, including greenhouses, gardens, and pots.
In cannabis crops, the use of fertilizers such as PK Pro 33PRO during the peak weeks of flowering drives a more intense production of buds, improving both the size and the terpene profile of the plant.
In addition, its compatibility with technologies such as Mycorrhiza Trichoderma 33PRO further enhances nutrient absorption and strengthens the natural resistance of the root system against pests and diseases.
This product is part of the Fertilizers33PRO line, a range designed for demanding growers seeking professional results in every harvest.
The recommended dose is 0.5 grams per liter of irrigation water. Add PK Pro 33PRO during the key weeks of flowering, when plants need more energy to develop their flowers.
It can be used together with other nutrients, always respecting the nutritional balance and avoiding overfertilization.
It is compatible with drip, manual, or automatic irrigation systems, and does not clog the pipes thanks to its purity and solubility.
The PK Pro 33PRO formula contains phosphorus (P) and potassium (K) in concentrations specially adjusted to maximize flowering.
These nutrients act directly in the synthesis of sugars, proteins, and cellular structures responsible for the fattening and ripening of the buds.
In addition, its combination with Mycorrhiza Trichoderma 33PRO enhances the biological activity of the substrate, promoting healthy and efficient roots in absorption.
- Bigger and denser buds with higher resin content.
- Increased aromatic profile and flavor thanks to the potassium supply.
- Stimulates floral metabolism, promoting explosive flowering.
- Improves natural resistance to diseases by strengthening the plant's immune system.
- Compatible with Mycorrhiza Trichoderma 33PRO, improves absorption and root development.
- Easy, fast, and safe application in all types of substrates.
PK Pro 33PRO is a specific nutritional supplement for flowering. It contains concentrated levels of phosphorus and potassium, two essential elements in the final phase of cultivation.
Designed for growers seeking higher yield, quality, and commercial value in their flowers, it is part of the professional range of Fertilizers 33PRO, known for their effectiveness in cannabis cultivation.
You can purchase PK Pro 33PRO quickly, safely, and with discreet shipping through Hydroponics Blanes, your trusted Grow Shop.
With years of experience in the sector, this Grow Shop in Spain offers the best products for cannabis cultivation, including the renowned Fertilizers 33PRO and additives such as Mycorrhiza Trichoderma 33PRO.
In addition, they offer personalized advice so you can optimize every stage of your crop. PK Pro 33PRO is the perfect ally for those looking for a real boost during flowering. Whether you grow in coco, soil, or hydroponics, this fertilizer will help you get the most out of your plants, offering you more resinous, compact, and tasty flowers.
Find it at Hydroponics Blanes, where the passion for cultivation meets proven performance products and expert attention.
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