PK-X
Bloom booster. Bigger, denser flower set — extra phosphorus and potassium meet peak bloom demand so flowers bulk instead of stalling.
250 mL bottle / Orange
PK-X
Bloom booster. Use in Early Flower, Mid Flower.
Available
NZD $39.99
When to use
Introduce gradually in early flower and maintain through mid flower as appropriate.
Why it matters
Bigger, denser flower set — extra phosphorus and potassium meet peak bloom demand so flowers bulk instead of stalling.
How it works
Adds bloom-focused PK support without replacing disciplined base-feed control.
Compatibility notes
Pairs with TRACE-X in early flower and VITAL-X in mid flower.
Mixing notes
Add after base nutrients and before final pH adjustment.
Storage notes
Store closed in a cool, dry place.
Shelf-life notes
Best used within 18 months of opening.
Formulation & guaranteed analysis
PGG Hort — revised formulation, 14 May 2026. Composition is per litre of concentrate — not a dose rate.
Composition (per litre)
- Mono-potassium phosphate60 g
- Potassium sulfate45 g
- Potassium nitrate20 g
- Waterto volume
Label & feed chart
PK-X label & feed chart
See the approved product label and rear feed chart, download the product PDFs, or open stage-specific QR feed guidance.
Front label
Rear feed chart
Grow OS product render
Checking access
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What to watch for
- + Leaf tip response
- + Flower set
- + Runoff EC trend
Signs of overuse
- + Tip burn
- + Runoff EC climbing
- + Calcium or magnesium antagonism
Signs of deficiency
- + Weak flower set
- + Slow bloom momentum
- + Poor bulking response
Planning dose range
Beginner, standard, and professional calculator defaults.
beginner
0.3-0.5 ml/L
standard
0.5-0.9 ml/L
professional
0.9-1.3 ml/L
Product tips
- + Do not jump dose sharply at transition.
- + Reduce if runoff EC rises over multiple feeds.
Related protocols
Stages: Early Flower, Mid Flower. Add PK-X to My Shelf to track usage, reorder timing, and low-stock warnings.
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