---
product_id: 100360807
title: "Koolbloom"
brand: "general hydroponics"
price: "€ 63.70"
currency: EUR
in_stock: true
reviews_count: 4
category: "General Hydroponics"
url: https://www.desertcart.de/products/100360807-koolbloom
store_origin: DE
region: Germany
---

# NPK ratio 2-4-28 for bloom boost 2.2 lbs premium powder feeds up to 22L solution Koolbloom

**Brand:** general hydroponics
**Price:** € 63.70
**Availability:** ✅ In Stock

## Summary

> 🌸 Unlock your garden’s sweetest potential with Koolbloom!

## Quick Answers

- **What is this?** Koolbloom by general hydroponics
- **How much does it cost?** € 63.70 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.de](https://www.desertcart.de/products/100360807-koolbloom)

## Best For

- general hydroponics enthusiasts

## Why This Product

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

## Key Features

- • **Bloom Like a Pro:** Specialized 2-4-28 NPK formula turbocharges flowering and fruiting for luscious, sweet harvests.
- • **Versatile Feeding:** Perfect for hydroponics and soil, adaptable dosing lets you customize for peak plant performance.
- • **Easy Storage & Use:** Compact, stable powder keeps fresh in cool, dark places—ready whenever your garden demands a boost.
- • **Trusted by Growers:** Highly rated with 4.6 stars, loved for delivering visibly sweeter, swollen fruits like peaches and pears.
- • **Long-Lasting Supply:** 2.2 lbs powder stretches to 22 liters of nutrient-rich solution—economical and efficient.

## Overview

General Hydroponics Koolbloom is a premium 2.2-pound powder fertilizer with a bloom-boosting 2-4-28 NPK ratio, designed for hydroponic and soil applications. It prepares up to 22 liters of nutrient solution, enhancing flowering and fruit sweetness, and is highly rated by users for its effective, customizable feeding and long shelf life.

## Description

B07MXVJ4KY

Review: Good Nutrients - Love this nutrient line
Review: Sweet sweet peaches! - I use koolbloom on my fruit trees at about half strength 2nd week of August and half strength 1st week in September by end of September all my fruit are swollen and so sweet makes for easy pickings,, especially the peaches. I have Bartlett pears, Asian pears, 4 type apples trees, cherries, peaches and figs all gets same feeding and are so sweet. This is not the recommended feeding directions per bag just my own preference. A little Koolbloom goes a long so becareful on feeding. Keeps well in cool dark cooler along with all my other plant food. Love the results.

## Features

- B07MXVJ4KY

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B07MXVJ4KY |
| Best Sellers Rank | #303,154 in Patio, Lawn & Garden ( See Top 100 in Patio, Lawn & Garden ) #4,554 in Garden Fertilizers |
| Brand | General Hydroponics |
| Customer Reviews | 4.6 4.6 out of 5 stars (41) |
| Item Form | Powder |
| Item Weight | 2.2 pounds |
| Item model number | 2 45 28 |
| Liquid Volume | 22 Liters |
| Manufacturer | General Hydroponics |
| Number of Items | 5 |
| Product Dimensions | 4.6 x 2.8 x 6.9 inches |
| Specific Uses For Product | Hydroponics |
| UPC | 793094013161 |
| Unit Count | 35.2 Fluid Ounces |

## Product Details

- **Brand:** General Hydroponics
- **Item Form:** Powder
- **Item Weight:** 2.2 Pounds
- **Liquid Volume:** 22 Liters
- **Specific Uses For Product:** Hydroponics

## Images

![Koolbloom - Image 1](https://m.media-amazon.com/images/I/71c+IazPQQL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Good Nutrients
*by A***R on May 29, 2025*

Love this nutrient line

### ⭐⭐⭐⭐⭐ Sweet sweet peaches!
*by S***L on September 14, 2022*

I use koolbloom on my fruit trees at about half strength 2nd week of August and half strength 1st week in September by end of September all my fruit are swollen and so sweet makes for easy pickings,, especially the peaches. I have Bartlett pears, Asian pears, 4 type apples trees, cherries, peaches and figs all gets same feeding and are so sweet. This is not the recommended feeding directions per bag just my own preference. A little Koolbloom goes a long so becareful on feeding. Keeps well in cool dark cooler along with all my other plant food. Love the results.

### ⭐⭐⭐⭐⭐ Great results fair price
*by C***S on April 6, 2024*

I like that this product is a powder form instead of buying those expensive already mixed nutrients they work really good and yield excellent results.

## Frequently Bought Together

- General Hydroponics Koolbloom
- General Hydroponics Liquid Kool Bloom Fertilizers, 1-Quart
- General Hydroponics CALiMAGic 1-0-0, Concentrated Blend of Calcium & Magnesium, Secondary Nutrient Deficiencies Helps Prevent Blossom End Rot & Tip Burn, Clean, Soluble, 1-Quart

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**Shop now:** [https://www.desertcart.de/products/100360807-koolbloom](https://www.desertcart.de/products/100360807-koolbloom)

---

*Product available on Desertcart Germany*
*Store origin: DE*
*Last updated: 2026-02-21*