---
product_id: 652077482
title: "All-Purpose Eco-Friendly Slow-Release Nitrogen 6-4-0 Fertilizer, 32 Pound Bag - for Lawns, Flowers, and Gardens"
brand: "milorganite"
price: "£93.05"
currency: GBP
in_stock: false
reviews_count: 8
url: https://www.desertcart.co.uk/products/652077482-all-purpose-eco-friendly-slow-release-nitrogen-6-4-0
store_origin: GB
region: United Kingdom
---

# Slow-release nitrogen for 8-10 weeks Organic iron greens without staining Virtually no salts, no burn protection All-Purpose Eco-Friendly Slow-Release Nitrogen 6-4-0 Fertilizer, 32 Pound Bag - for Lawns, Flowers, and Gardens

**Brand:** milorganite
**Price:** £93.05
**Availability:** ❌ Out of Stock

## Summary

> 🌿 Feed your lawn like a pro—slow, steady, and stunningly green!

## Quick Answers

- **What is this?** All-Purpose Eco-Friendly Slow-Release Nitrogen 6-4-0 Fertilizer, 32 Pound Bag - for Lawns, Flowers, and Gardens by milorganite
- **How much does it cost?** £93.05 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.co.uk](https://www.desertcart.co.uk/products/652077482-all-purpose-eco-friendly-slow-release-nitrogen-6-4-0)

## Best For

- milorganite enthusiasts

## Why This Product

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

## Key Features

- • **Vibrant Deep Green Lawn:** Organically complex iron nourishes grass without staining concrete or surfaces.
- • **Eco-Friendly & Family Safe:** Made from heat-dried microbes, free from harmful chemicals—safe around kids and pets.
- • **Versatile Garden Powerhouse:** Perfect for lawns, flowers, shrubs, trees, and vegetable gardens—covers 2,500 sq. ft.
- • **Consistent, Streak-Free Growth:** Slow-release formula feeds evenly for up to 10 weeks—no harsh stripes or burn marks.
- • **No Watering Needed Post-Application:** Nutrients activate gradually without the hassle of immediate watering.

## Overview

Milorganite All-Purpose Fertilizer is an eco-friendly, slow-release nitrogen formula that feeds lawns and gardens evenly for 8-10 weeks. It contains virtually no salts, preventing burn damage, and delivers organically complex iron for vibrant green color without staining. Safe for use around children and pets, it covers up to 2,500 sq. ft. and requires no watering after application, making it the trusted choice for sustainable, lush growth.

## Description

Each bag delivers primary nutrients Nitrogen and Phosphorus to plants as well as important micro-nutrients that they need to develop. Milorganite is made from microbes that eat the organic material found in wastewater, die when they have nothing else to eat, and are heat-dried in dryers that operate at 900-1200 degrees Fahrenheit. There’s no immediate, excessive release of nutrients after fertilizing, which causes a flush of growth. This slow-release formula results in uniform growth and a well-established root system. Milorganite has no expiration date. It will work indefinitely if stored properly in a cool and dry area out of the reach of children and animals.

Review: Trusted, Slow-Release Lawn Fertilizer I’ve Used for Over a Decade - BLUF: Bottom line: dependable fertilizer I keep using year after year, forgiving, safer than alternatives. I’ve used Milorganite Slow‑Release Nitrogen Fertilizer on my St. Augustine and Zoysia lawns for about 10 years, and it’s one of the most reliable fertilizers I’ve found. The slow-release formula feeds my grass gradually and evenly without burning it or causing the harsh “highlighter” stripes I saw with quick-release iron products. It’s easy to spread and the lawn always stays green and healthy, even under heat. I like that it’s an eco-friendly product with a natural slow-release nutrient profile, which gives me peace of mind with kids and pets around. It doesn’t include weed killers, so it’s purely a fertilizer, but for regular lawn feeding it does exactly what I want. After application you will smell a deep tomato soup like smell for a day or two. What I like: slow, non-burning feed; easy application; steady green without stripes; family-friendly. What to know: slow-release means you won’t see instant greening like quick-release products.
Review: Milorganite - I used the Milorganite to pre-germinate grass seed. After I soaked the seed for a couple days, I mixed it with the Milorganite to make it dry enough to spread using my spreader. It worked very well for this purpose.

## Features

- You don’t have to worry about streaks, stripes, or accidentally burning your lawn when you use Milorganite fertilizer!
- Milorganite contains virtually no salts, so it won’t burn your lawn, trees, shrubs, or plants, even in the hottest temperatures or driest conditions.
- Milorganite's iron greens without staining. Grass needs iron for the long-lasting, deep, vibrant green lawn you want. Milorganite delivers organically complex iron throughout the feeding period and won’t stain concrete, unlike iron salts in some synthetic fertilizers.
- Milorganite’s slow-release plant food formula provides nitrogen and other nutrients for up to 8-10 weeks after application and does not need to be watered in. Covers 2,500 Sq. Ft.
- Milorganite can be safely used in lawns, flowers, shrubs, trees, and fruit and vegetable gardens, promoting strong roots and sturdier stems. It provides the nutrients every garden needs to grow the biggest and greatest abundance.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0DDHTJKCY |
| Best Sellers Rank | #36,853 in Patio, Lawn & Garden ( See Top 100 in Patio, Lawn & Garden ) #1,118 in Garden Fertilizers |
| Brand | Milorganite |
| Customer Reviews | 4.7 4.7 out of 5 stars (387) |
| Item Form | Granules |
| Item Weight | 29.9 pounds |
| Item model number | 62036 |
| Manufacturer | Milorganite |
| Number of Items | 1 |
| Package Dimensions | 18 x 14 x 7 inches |
| Specific Uses For Product | Lawns, Flowers and Gardens |
| UPC | 311716854284 |
| Unit Count | 512.0 Ounce |

## Product Details

- **Brand:** Milorganite
- **Item Form:** Granules
- **Manufacturer:** Milorganite
- **Number of Items:** 1
- **Specific Uses For Product:** Lawns, Flowers and Gardens

## Images

![All-Purpose Eco-Friendly Slow-Release Nitrogen 6-4-0 Fertilizer, 32 Pound Bag - for Lawns, Flowers, and Gardens - Image 1](https://m.media-amazon.com/images/I/41PsogY2RLL.jpg)
![All-Purpose Eco-Friendly Slow-Release Nitrogen 6-4-0 Fertilizer, 32 Pound Bag - for Lawns, Flowers, and Gardens - Image 2](https://m.media-amazon.com/images/I/518QGu0rmDL.jpg)
![All-Purpose Eco-Friendly Slow-Release Nitrogen 6-4-0 Fertilizer, 32 Pound Bag - for Lawns, Flowers, and Gardens - Image 3](https://m.media-amazon.com/images/I/51rh97Zrx+L.jpg)
![All-Purpose Eco-Friendly Slow-Release Nitrogen 6-4-0 Fertilizer, 32 Pound Bag - for Lawns, Flowers, and Gardens - Image 4](https://m.media-amazon.com/images/I/51tPIw9-o8L.jpg)
![All-Purpose Eco-Friendly Slow-Release Nitrogen 6-4-0 Fertilizer, 32 Pound Bag - for Lawns, Flowers, and Gardens - Image 5](https://m.media-amazon.com/images/I/51yB7BEEcTL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Trusted, Slow-Release Lawn Fertilizer I’ve Used for Over a Decade
*by S***N on January 1, 2026*

BLUF: Bottom line: dependable fertilizer I keep using year after year, forgiving, safer than alternatives. I’ve used Milorganite Slow‑Release Nitrogen Fertilizer on my St. Augustine and Zoysia lawns for about 10 years, and it’s one of the most reliable fertilizers I’ve found. The slow-release formula feeds my grass gradually and evenly without burning it or causing the harsh “highlighter” stripes I saw with quick-release iron products. It’s easy to spread and the lawn always stays green and healthy, even under heat. I like that it’s an eco-friendly product with a natural slow-release nutrient profile, which gives me peace of mind with kids and pets around. It doesn’t include weed killers, so it’s purely a fertilizer, but for regular lawn feeding it does exactly what I want. After application you will smell a deep tomato soup like smell for a day or two. What I like: slow, non-burning feed; easy application; steady green without stripes; family-friendly. What to know: slow-release means you won’t see instant greening like quick-release products.

### ⭐⭐⭐⭐⭐ Milorganite
*by D***E on January 20, 2026*

I used the Milorganite to pre-germinate grass seed. After I soaked the seed for a couple days, I mixed it with the Milorganite to make it dry enough to spread using my spreader. It worked very well for this purpose.

### ⭐⭐⭐⭐⭐ Can’t over fertilize
*by H***K on December 24, 2025*

Great, buds are bigger and more flowers

## Frequently Bought Together

- Milorganite Recycled Lawn and Garden Nitrogen Fertilizer (Recycled Organic Material)
- Jonathan Green (10322) Black Beauty Ultra Grass Seed - Cool Season Lawn Seed (7 lb)
- Paint Strainer Bag, 5 Gallon Paint Strainer with Elastic Top Opening White Fine Mesh Filters Bag for Paint Gardening (5 Pieces)

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*Product available on Desertcart United Kingdom*
*Store origin: GB*
*Last updated: 2026-06-02*