---
product_id: 741394559
title: "Overdrive - Best Flower Hardener - 1 L"
brand: "advanced nutrients"
price: "€ 211.16"
currency: EUR
in_stock: true
reviews_count: 5
url: https://www.desertcart.es/products/741394559-overdrive-best-flower-hardener-1-l
store_origin: ES
region: Spain
---

# Magnesium & phosphorus boost energy transfer Optimized NPK 1-5-4 for flower hardening Liquid formula for easy absorption Overdrive - Best Flower Hardener - 1 L

**Brand:** advanced nutrients
**Price:** € 211.16
**Availability:** ✅ In Stock

## Summary

> 🌿 Harden your harvest, elevate your garden game!

## Quick Answers

- **What is this?** Overdrive - Best Flower Hardener - 1 L by advanced nutrients
- **How much does it cost?** € 211.16 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.es](https://www.desertcart.es/products/741394559-overdrive-best-flower-hardener-1-l)

## Best For

- advanced nutrients enthusiasts

## Why This Product

- Trusted advanced nutrients brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Finish Strong:** Supports plants through the final growth phase, ensuring your buds bulk up before flush.
- • **Peak Bloom Power:** Engineered with a precise 1-5-4 NPK ratio to maximize flower maturation and bud density.
- • **Trusted by Experts:** Rated 4.8/5 by 131 growers who refuse to switch brands—join the elite growers’ club.
- • **Effortless Application:** Liquid form ensures quick uptake and easy mixing at 2 ml per liter for consistent results.
- • **Scientifically Formulated:** Contains ideal phosphorus and magnesium levels to supercharge plant energy metabolism.

## Overview

Advanced Nutrients Overdrive is a premium liquid flower hardener with a targeted 1-5-4 NPK ratio, enriched with phosphorus and magnesium to optimize energy transfer and bud development. Designed for professional growers seeking maximum flower density and maturation, it delivers proven results with easy application and high customer satisfaction.

## Description

With an NPK ratio of 1-5-4, this premium bud hardener invites your garden to maintain peak performance all the way to the finish line. Our team of scientists engineered Overdrive with ideal amounts of phosphorus and magnesium to create the optimal conditions for catalyzing energy transfers within your plants, so they’ve got ample opportunity to bulk up your buds before flush.

Review: Will never switch nutrients brand
Review: The best nutrients around

## Features

- Brand: Advanced Nutrients
- Item form: Liquid
- Specific uses for product: Plant Growth, Flower Maturation, Flower Growth
- Target species: plants

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0BBQ8XFY5 |
| Brand | Advanced Nutrients |
| Brand Name | Advanced Nutrients |
| Coverage | Full |
| Customer Reviews | 4.8 out of 5 stars 131 Reviews |
| Item Form | Liquid |
| Item Type Name | Overdrive |
| Item Weight | 1.1 kg |
| Item form | Liquid |
| Item weight | 1.1 kg |
| Liquid Volume | 1 Liters |
| Liquid volume | 1 Liters |
| Manufacturer | Advanced Nutrients LLC |
| Mixing Ratio | 2 ml per 1 liter |
| Model Number | 4750904 |
| Specific Uses For Product | Plant Growth, Flower Maturation, Flower Growth |
| Specific uses for product | Plant Growth, Flower Maturation, Flower Growth |
| Target Species | plants |
| UPC | 845268001259 |
| Unit Count | 33.8 Milliliters |

## Product Details

- **Brand:** Advanced Nutrients
- **Item form:** Liquid
- **Item weight:** 1.1 kg
- **Liquid volume:** 1 Liters
- **Specific uses for product:** Plant Growth, Flower Maturation, Flower Growth

## Images

![Overdrive - Best Flower Hardener - 1 L - Image 1](https://m.media-amazon.com/images/I/51ducyfpM3L.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Will never switch nutrients brand
*by D***B on 8 June 2025*



### ⭐⭐⭐⭐⭐ The best nutrients around
*by M***S on 18 January 2025*



### ⭐⭐⭐⭐⭐ this really does effect bud size
*by J***O on 19 August 2025*



## Frequently Bought Together

- Advanced Nutrients Overdrive - Best Flower Hardener - 1 L
- Xcdiscount B-52 Fertilizantes Booster, 1L
- Advanced Nutrients Big Bud Liquid Fertilizer, 1-Liter

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---

*Product available on Desertcart Spain*
*Store origin: ES*
*Last updated: 2026-02-12*