---
product_id: 393426539
title: "Happy Frog All Purpose Fertilizer - with Active Soil Microbes - Fast Acting Organic Gardening Plant Care - Nutrient Rich Plant Food Outdoor and Indoor – NPK 6-4-5 (4 lb Bag)"
brand: "fox farm"
price: "£62.55"
currency: GBP
in_stock: true
reviews_count: 5
category: "Fox Farm"
url: https://www.desertcart.co.uk/products/393426539-happy-frog-all-purpose-fertilizer-with-active-soil-microbes-fast
store_origin: GB
region: United Kingdom
---

# NPK 6-4-5 balanced nutrition Active soil microbes & mycorrhizae Fast-acting, easy application Happy Frog All Purpose Fertilizer - with Active Soil Microbes - Fast Acting Organic Gardening Plant Care - Nutrient Rich Plant Food Outdoor and Indoor – NPK 6-4-5 (4 lb Bag)

**Brand:** fox farm
**Price:** £62.55
**Availability:** ✅ In Stock

## Summary

> 🌿 Grow smarter, not harder — your plants’ new best friend!

## Quick Answers

- **What is this?** Happy Frog All Purpose Fertilizer - with Active Soil Microbes - Fast Acting Organic Gardening Plant Care - Nutrient Rich Plant Food Outdoor and Indoor – NPK 6-4-5 (4 lb Bag) by fox farm
- **How much does it cost?** £62.55 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.co.uk](https://www.desertcart.co.uk/products/393426539-happy-frog-all-purpose-fertilizer-with-active-soil-microbes-fast)

## Best For

- fox farm enthusiasts

## Why This Product

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

## Key Features

- • **Microbial Root Boost:** Infused with beneficial microbes and mycorrhizae to supercharge root health and nutrient uptake.
- • **Long-Lasting Coverage:** 4 lbs covers up to 100 sq ft, delivering sustained nourishment that keeps plants green and strong.
- • **Ready-to-Use Convenience:** Pre-mixed granules mean no measuring or mixing—just sprinkle and watch your garden thrive.
- • **Versatile Growth Support:** Perfect for container gardens, raised beds, and garden plots—supports veggies, flowers, and ornamentals alike.
- • **Balanced Nutrient Powerhouse:** Optimized 6-4-5 NPK ratio fuels lush leaves and vibrant blooms for your indoor and outdoor plants.

## Overview

Fox Farm Happy Frog All Purpose Fertilizer is a fast-acting, organic plant food with a balanced 6-4-5 NPK formula enriched with active soil microbes and mycorrhizae. Designed for both indoor and outdoor use, this 4 lb bag covers up to 100 square feet, promoting robust root systems, vibrant foliage, and abundant blooms with easy, no-mess application.

## Description

FoxFarm FX14620 Happy Frog All-Purpose Fertilizer, 4 lb Bag Nutrients

Review: I bought this in the spring after I planted my vegetable garden in the ground. The tomato plants and zucchini were somewhat yellow. Within a week of sprinkling this Fertilizer onto the soil, the plants became green and healthy. I apply it once a month to all my vegetables and this has been my most successful and healthy garden ever. I'm very pleased with this product. It's easy to use and you get a lot for your money. I have used about a half bag this year. That is about all I needed. It doesn't smell good but it's a lose and easy to spread, dry Fertilizer.
Review: My plants love this stuff.

## Features

- ALL-IN-ONE FERTILIZER FOR STRONG GROWTH: Balanced houseplant fertilizer with a 6-4-5 ratio of NPK, this indoor plant fertilizer provides with a well-rounded nutrient that supports leaf growth and flower or fruit production for healthier, fuller plants
- MYCORRHIZAL MAGIC FOR ROBUST ROOTS: Organic fertilizer for vegetables made with beneficial soil microbes and mycorrhizae, enhances your plant's root system by improving nutrient absorption and water intake, ensuring stronger roots for more vigorous growth
- PRE-MIXED FORMULA FOR EASY APPLICATION: Fox farm all purpose plant food comes as premixed easy-to-apply. There is no need to measure or mix, simply apply straight from the bag making it perfect for busy gardeners for even nutrient distribution in no time
- A LITTLE GOES A LONG WAY: A 4 lb bag of house plant fertilizer for indoor plants covers up to 100 square feet of planting area, providing continuous nourishment for multiple plants. It also delivers long-lasting nutrition for greener leaves, and overall strength
- SUPPORTS EVERY GROWING CONDITION: Nutrient-packed outdoor plant food tailored for various gardening approaches, supports growth in container plants, raised beds, and garden plots. Whether you cultivate vegetables, ornamentals, or flowers, it sets in every plant setting

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B088XFBTW7 |
| Brand Name | Fox Farm |
| Coverage | Full |
| Customer Reviews | 4.6 4.6 out of 5 stars (681) |
| Global Trade Identification Number | 00752289500541 |
| Included Components | Fox Farm - 175-50054 - 4lb |
| Item Form | Granules |
| Item Type Name | Fox Farm - 175-50054 - 4lb |
| Item Weight | 4 Pounds |
| Manufacturer | FoxFarm |
| Mixing Ratio | 6-4-5 |
| Model Number | Fox Farm - 175-50054 - 4lb |
| Number of Items | 1 |
| Part Number | Fox Farm - 175-50054 - 4lb |
| Specific Uses For Product | Organic |
| Target Species | Insects |
| UPC | 752289500541 |
| Unit Count | 64 Ounce |

## Product Details

- **Brand:** Fox Farm
- **Global Trade Identification Number:** 00752289500541
- **Item form:** Granules
- **Item weight:** 4 Pounds
- **Specific uses for product:** Organic

## Images

![Happy Frog All Purpose Fertilizer - with Active Soil Microbes - Fast Acting Organic Gardening Plant Care - Nutrient Rich Plant Food Outdoor and Indoor – NPK 6-4-5 (4 lb Bag) - Image 1](https://m.media-amazon.com/images/I/71VJ9YZsOkL.jpg)

## Questions & Answers

**Q: Is this a slow release  fertilizer?**
A: Yes

**Q: Good for flower?**
A: Excellent product for flowers!

**Q: Good for flower?**
A: Yes I use it on all my pit plants. They look healthier and bloom longer.

**Q: How do you put on flowers?**
A: I put a teaspoon to tablespoon at the base depending on how big the plant is then water the plant. I do this monthly. Also when I initially plant the flower/bush I put a teaspoon in the hole prior to planting it. This is some wonderful fertilizer…worth every penny.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Review
*by M***E on 4 August 2024*

I bought this in the spring after I planted my vegetable garden in the ground. The tomato plants and zucchini were somewhat yellow. Within a week of sprinkling this Fertilizer onto the soil, the plants became green and healthy. I apply it once a month to all my vegetables and this has been my most successful and healthy garden ever. I'm very pleased with this product. It's easy to use and you get a lot for your money. I have used about a half bag this year. That is about all I needed. It doesn't smell good but it's a lose and easy to spread, dry Fertilizer.

### ⭐⭐⭐⭐⭐ Review
*by N***A on 11 February 2026*

My plants love this stuff.

### ⭐⭐⭐⭐⭐ Review
*by D***Y on 17 September 2025*

Works great. I personally mix it in my water after I ph and add cal mag. My plants look awesome. I definitely add ph down.

## Frequently Bought Together

- FoxFarm Happy Frog All Purpose Fertilizer - with Active Soil Microbes - Fast Acting Organic Gardening Plant Care - Nutrient Rich Plant Food Outdoor and Indoor – NPK 6-4-5 (4 lb Bag)
- Fox Farm Happy Frog Tomato and Vegetable Fertilizer - Dry Tomato Fertilizer for Strong Growth, Plant Resistance, and Root Efficiency, NPK 5-7-3 (4 lb Bag)
- Fox Farm Happy Frog Fruit & Flower Fertilizer – Organic Blend for Abundant Fruits & Vibrant Flowers, Phosphorus Fertilizer with Mycorrhizal Fungi, NPK 4-9-3, (4 lb Bag)

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---

*Product available on Desertcart United Kingdom*
*Store origin: GB*
*Last updated: 2026-05-24*