PK Boosters

PK Boosters are concentrated bloom enhancers that deliver extra Phosphorus (P) and Potassium (K) during the flowering stage, when plants need them most. These nutrients work together to drive bigger flowers, denser fruits, and heavier harvests, giving growers the push required for maximum yield and quality. Easy to use alongside your base nutrients, PK boosters slot into any feeding schedule and are suitable for soil, coco, and hydro systems.

Phosphorus (P):

• Promotes strong flower initiation and development

• Improves root energy transfer for better nutrient uptake

• Supports plant metabolism and resilience during bloom

Potassium (K):

• Enhances flower and fruit density for heavier harvests

• Boosts flavour, aroma, and overall crop quality

• Strengthens plants against stress and disease during late growth

At Greens Horticulture, we stock a wide range of PK boosters from trusted brands, backed with expert advice to help UK growers get the best from every harvest. With the right booster, you’ll see larger, higher-quality yields and more consistent results.