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ADVANCED NUTRIENTS Hammerhead 1L

£1995
Tax included, shipping and discounts calculated at checkout.


Advanced Nutrients – HammerHead | High-Performance PK Bloom Booster (NPK 0‑4‑12)

Advanced Nutrients HammerHead is a modern, refined PK booster built to maximize flowering potential without causing nutrient overload. Featuring an ideal 1:3 phosphorus-to-potassium ratio, this nitrogen‑free formula supports dense flower formation, increased essential oil production, and superior yield quality. It also includes potassium citrate—a cleaner, more plant-friendly form of potassium that reduces toxicity risks.


Key Benefits

  • Balanced Blooms: NPK 0‑4‑12 encourages stronger, heavier, and more resinous blooms

  • No Nitrogen: Reduces leafy growth and directs plant energy toward flowering

  • Potassium Citrate: Enhances nutrient uptake while avoiding issues common with traditional salts

  • pH-Compatible: Integrates seamlessly with Advanced Nutrients systems

  • Optimal Ratio: The precise 1:3 P to K ratio is tailored for high-value indoor flower production

  • High Solubility: Won’t clog injection systems or drip lines


How to Use

  • Use during weeks 3 through 7 of flowering (mid-to-late bloom)

  • Apply at 2 ml per litre of nutrient solution

  • Add after your base nutrient feed and stir well

  • Pair with Big Bud™ early and Overdrive™ late bloom for enhanced results

  • No pH adjustment necessary when used within Advanced Nutrients systems


Available Sizes

  • 250 ml

  • 500 ml

  • 1 Litre

  • 5 Litres


Why Choose HammerHead?

HammerHead stands apart from generic bloom boosters with its plant-specific formulation and cleaner nutrient delivery. It’s designed to deliver bigger, more potent flowers with less risk of nutrient burn—ideal for growers focused on density, aroma, and resin production.