# Advanced Nutrients Hammerhead

### 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:

-   **Big Bud®** during early flowering for enhanced bud development
-   **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.

## Details

- **Vendor:** Advanced Nutrients
- **Type:** Nutrients
- **Tags:** Advanced, brand new, Nutrients, Nutrients & Additives

## Images

- Advanced Nutrients Hammerhead nutrient bottle with Hammerhead shark label, 0-4-12
- Advanced Nutrients Hammerhead nutrient jug, blue Hammerhead label with 0-4-12 ratio

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> Source: [Eden Horticulture Ltd](https://edenhorticulture.co.uk/products/advanced-nutrients-hammerhead)
> Updated: 2026-08-03