Bloom PK is a concentrated flowering additive formulated to provide additional phosphorus and potassium during flower and fruit development. Its 0-19.5-21 formulation supports flower swelling, fruit development, and accelerated maturation, helping increase final harvest weight. It is designed to be used alongside the existing base nutrient program, particularly during the fifth week of flowering.
• Brand: Bloom Yellow Bottles
• Product Type: Flowering PK booster
• NPK: 0-19.5-21
• Phosphate (P₂O₅): 19.5%
• Soluble Potash (K₂O): 21%
• Primary Function: Supplies additional phosphorus and potassium during flowering
• Key Benefits: Supports flower and fruit swelling, maturation, and final harvest weight
• Application Rate: Generally 1 mL/L of nutrient solution
• Application Stage: Fifth week of flowering
• Growing Media: Soil, coco, and hydroponics
• System Compatibility: Recirculating and run-to-waste systems
• Available Sizes: 300 mL, 1 L, 2.5 L, 15 L, and 25 L
Key Advantage: Bloom PK combines concentrated phosphorus and potassium in a 0-19.5-21 formulation to support flowering, fruit development, and crop maturation without replacing the base nutrient program.