Advanced Nutrients Hammerhead
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Description
Advanced Nutrients HammerHead PK Booster | Late Flower Bloom Enhancer
Advanced Nutrients HammerHead is a powerful PK booster designed for the mid-to-late flowering stage, helping plants produce larger, denser and more resin-rich flowers. With a targeted 0-4-12 NPK ratio, HammerHead delivers the extra phosphorus and potassium plants need during peak bloom without disrupting your nutrient balance.
Formulated with Advanced Nutrients’ pH Perfect® technology, HammerHead automatically stabilises nutrient solution pH, removing the need for constant adjustments. This makes it an ideal flowering booster for hydroponic, coco and soil growing systems.
HammerHead integrates seamlessly with the Advanced Nutrients range, especially the Sensi Terra™ Series base nutrients, but it can also be used with other pH Perfect and non-pH Perfect base nutrients or even alongside nutrients from other brands.
Please Note: The 5 Litre size is purchase-to-order, so slightly extended lead times may apply.
Key Benefits of Advanced Nutrients HammerHead
✔ High-Performance PK Booster (0-4-12) – Drives dense bud formation and stronger flower development
✔ pH Perfect® Technology – Maintains ideal pH automatically with no adjustments needed
✔ Nitrogen-Free Formula – Supports bloom growth without promoting unwanted leafy growth
✔ Clean, Fully Soluble Nutrient – Won’t clog drippers, pumps, or irrigation lines
✔ Optimised for Hydroponics & Coco – Perfect for modern hydroponic growing systems
A More Precise Bloom Booster
Unlike generic PK boosters designed for agricultural crops, Advanced Nutrients HammerHead is formulated specifically for high-performance indoor growing systems.
Its precise 1:3 phosphorus-to-potassium ratio supports heavy flower production while maintaining balanced nutrient uptake. HammerHead also uses potassium citrate instead of traditional sulphate-based potassium, improving nutrient availability and reducing the risk of toxicity in the root zone.
Because the formula contains zero nitrogen, it allows plants to focus entirely on flower production, bud density, and resin development during the later flowering stages.
For optimal results, combine HammerHead with Advanced Nutrients Sensi Terra™ Series, or simply add it to your existing nutrient schedule as a late-flower PK bloom booster.
How to Use Advanced Nutrients HammerHead
Add 2 ml per litre alongside your base nutrients during weeks 3–7 of the flowering phase.
For best results, growers often combine HammerHead with:
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Big Bud® during early flowering for enhanced bud development
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Overdrive® during the final stages to maximise yield and flower weight
When used with other Advanced Nutrients pH Perfect® products, no additional pH adjustment is required.
✅ Ideal for: hydroponics, coco coir, soil growing, indoor grow rooms and high-yield flowering cycles.
Specifications