---
product_id: 50467169
title: "10KG IRON SULPHATE LAWN FERTILISER, LAWN FEED and GRASS TONIC. All Round Multi-Purpose Sulphate of Iron Lawn Conditioner, Fertiliser, Grass Greener & Turf Hardener."
brand: "guard-en-force"
price: "$98.83"
currency: USD
in_stock: true
reviews_count: 8
category: "Guard En Force"
url: https://www.desertcart.us/products/50467169-10kg-iron-sulphate-lawn-fertiliser-lawn-feed-and-grass-tonic
store_origin: US
region: United States of America
---

# Fast-acting iron-rich formula 10KG covers up to 10,000m² Multi-benefit turf hardener & disease prevention 10KG IRON SULPHATE LAWN FERTILISER, LAWN FEED and GRASS TONIC. All Round Multi-Purpose Sulphate of Iron Lawn Conditioner, Fertiliser, Grass Greener & Turf Hardener.

**Brand:** guard-en-force
**Price:** $98.83
**Availability:** ✅ In Stock

## Summary

> 🌿 Unlock the secret to envy-worthy lawns with pro-grade iron power!

## Quick Answers

- **What is this?** 10KG IRON SULPHATE LAWN FERTILISER, LAWN FEED and GRASS TONIC. All Round Multi-Purpose Sulphate of Iron Lawn Conditioner, Fertiliser, Grass Greener & Turf Hardener. by guard-en-force
- **How much does it cost?** $98.83 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/50467169-10kg-iron-sulphate-lawn-fertiliser-lawn-feed-and-grass-tonic)

## Best For

- guard-en-force enthusiasts

## Why This Product

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

## Key Features

- • **Pro-Level Lawn Greening:** Transforms dull, patchy lawns into lush, dark green carpets with just 2g/m² application.
- • **Long-Lasting Turf Strength:** Hardens turf to withstand wear and tear while reducing worm casts and preventing lawn diseases.
- • **Versatile Application Methods:** Apply dry by hand or spreader, or dissolve in warm water for spraying—flexible to fit your lawn care routine.
- • **Massive Coverage, Maximum Value:** One 10KG tub treats up to 10,000 square meters—perfect for large gardens or multiple applications.
- • **Professional Grade, Home Gardener Friendly:** Trusted by greenkeepers and landscapers, now accessible for discerning home gardeners seeking premium results.

## Overview

GUARD-EN-FORCE 10KG Iron Sulphate Lawn Fertiliser is a premium, iron-rich powder designed to rapidly green, strengthen, and protect lawns. Trusted by professionals, it covers up to 10,000m² and can be applied dry or as a spray. This multi-purpose lawn tonic hardens turf, reduces worm casts, and helps prevent disease, delivering a lush, healthy lawn all year round.

## Description

Product Description FROM THE MANUFACTURER TRADE FARM NI GUARD-EN-FORCE ADVANTAGES OF USING GUARD-EN-FORCE IRON SULPHATE Improves Lawn Health Encourages Strong Growth Improves Grass Colour Hardens Turf Reduces Worm Casts Transforms Dull Tired Lawns Helps Prevent Lawn Disease WHY TRADE FARM NI GUARD-EN-FORCE IRON SULPHATE IS THE BEST CHOICE FOR YOUR LAWN Professionals Secret Iron sulphate has been the secret of professionals such as greenkeepers and landscapers for decades. Irish golfing greenkeepers have perfected the ultimate putting greens that are lush dark green in colour using iron sulphate. It has now become widely used among discerning home gardeners in the UK and Ireland to create healthy lawns. Top Quality Mix Guard-En-Force iron sulphate is an iron rich mix of sulphate of iron, or ferrous sulphate, for creating healthy lawns. This Sulphate mix is a fine dry powder which is more powerful than damp or crystal blends, gives better coverage, is easier to mix down to a solution and the resealable tub will ensure that it stays fresh for use for much longer. Develop Healthy Lawn Using Guard-En-Force Iron sulphate is a quick and easy way to grow, develop and maintain a strong healthy lawn. It will create a healthy environment for grass to flourish. It will also provide a healthy iron tonic for the lawn which will help prevent disease and give the grass a lush green colour. Easy To Apply Guard-En-Force iron sulphate is easy to apply in a variety of ways. You can apply it dry or dissolved in water. Apply by hand or by spreader across the whole lawn. You can also mix the sulphate down into a solution with a little warm water and spray across the lawn using either a watering can or a pump sprayer. GUARD-EN-FORCE Iron Sulphate Will Help To Grow A Healthy Lawn Get The Perfect Lawn GUARD-EN-FORCE IRON SULPHATE is a long lasting, iron rich lawn fertiliser designed to create the perfect lawn. Grass loves an iron tonic to boost its health and vitality, making it more resistant to disease, and improves its colour. Transform your lawn today with one quick and easy application. Results are almost instantaneous. Used and trusted by professionals Promotes stronger healthier grass growth Will produce lush green coloured grass Tradefarmni Iron Sulphate Lawn Feed Quick and Easy to Apply 1 Kilogram of GUARD-EN-FORCE IRON SULPHATE will cover 500 - 1000 square metres of lawn as a tonic or lawn greener to green up the grass. It is easy to mix and quick to apply. Greens up grass giving it a vibrant healthy colour Iron sulphate helps prevent lawn disease Professional quality that is easy to use Will transform even the most tired and dull lawns Long lasting iron rich fertiliser to boost all lawns Handy resealable tub to keep product fresh for year round usage A GUARD-EN-FORCE TLC TREATMENT FOR YOUR LAWN To create that magical dream garden just mix our sulphate of iron fertiliser blend with water and spray on to your lawn. It will control the lawn environment for healthier growth and green up the grass. Give your lawn some love and your lawn will give you some magic moments. Green Up Grass A simple application will quickly and easily green up grass no matter how faded and jaded. Improve Lawn Health An application of iron sulphate will improve overall lawn health and help to prevent lawn disease. Long Lasting Fertiliser Our sulphate is a long lasting fertiliser that encourages stronger, healthier growth in grass for longer. 6 in 1 Benefits Our sulphate is a powerful fertiliser that hardens turf, greens grass, helps create a healthier environment for grass and also helps prevent against worm casts. USE GUARD-EN-FORCE IRON SULPHATE FOR HEALTHIER, GREENER GRASS OUR SULPHATE IS IRON RICH AND LAWNS LOVE IRON Iron Sulphate which is also commonly known as Ferrous Sulphate, Sulphate of Iron or iron sulfate is a powerful lawn fertiliser. It is a highly effective FERTILISER, LAWN GREENER and LAWN CONDITIONER. Iron Sulphate is also used as a TURF HARDENER and to reduce WORM CASTS on your lawn. Iron Sulphate used simply at a rate of only 2 grams per square metre gives grass a lovely dark, lush, green colour. It is highly soluble, so dissolves easily when mixed with some (warm) water so it can be sprayed on lawns from sprayers or watering cans. It can also be applied dry by hand or with a spreader and then watered afterwards. Coverage For Lawn Greening 1KG -500-1000 Square metres 5KG - 2500-5000 Square metres 10KG - 5000-10000 Square metres Easy To Apply Methods Apply Dry by Hand and Spray With Water Afterwards Apply Dry by Spreader and Spray With Water Afterwards Mix with Water and Apply By Watering Can Mix with Water and Apply By Pump Sprayer BENEFITS OF OUR IRON SULPHATE IRON RICH POWERFULFERTILISER FOR LAWNS IRON RICH TONIC TO GREEN UP GRASS HARDEN TURF TO IMPROVE LAWN QUALITY HELPS PREVENT LAWN DISEASE REDUCE WORM CASTS PLANT FOOD FOR ERICACEOUS PLANTS

Review: Product does a great job in greening the grass and browning the moss this early in the season - Ord from Home and family. ord 14/3/2017 arrived 18/3/2017. This was a re-order. This product is great at 'greening' the grass and 'browning' the moss at a time of year when it's too early to use other such products. One dose sprayed on in Feb and one in Mar. I'll spray again in April and then switch to Scotts Lawn products. Oh yes whilst the lawn is fully shaded and so the grass is patchy what there is looks fine, no yellowing etc. So whilst the lawn will never sadly win any prizes it's nice to see what there is all nice and green. Happy bunny. Well update used throughout 2017 and didn't feel the need to use anything else to make the lawn look enviably green and lush. I've just (26/1/2018) used again to get an early start on suppressing the moss which in this continuous wet weather is everywhere at 600g per 12 litre sprayer. Great stuff and I'll be getting so more. Well another update lets see ord from same supplier in 2016/2017/2018 and 2020 works a treat on killing the moss which in March 2020 was covering 50% of the lawn following the first qtr rain in 2020. Looks like overseeding is needed. Grrrrr
Review: Fit for purpose - Worked well to kill off thick moss, but dead material still needs removing. If you use too big a dosage your lawn will over blacken

## Features

- WHAT IS IRON SULPHATE? Iron Sulphate is Also Commonly Known as Ferrous Sulfate and Sulphate of Iron. Iron Sulphate is Highly Regarded by Keen Gardeners as a Lawn’s Best Friend. Both Professional and Domestic Users Apply Iron Sulphate as a Multi-Purpose Lawn Treatment. It Has a Wide Variety of Uses Such as Lawn Greening, Turf Hardening, Worm Casts, and Much More. Iron Sulphate is Renowned for its Use in Creating and Maintaining a Perfect, Strong, Healthy and Lush Green Lawn.
- HOW TO USE IRON SULPHATE? Iron Sulphate is Highly Regarded as an Essential Lawn Application in Both Spring and Autumn Seasons in Particular; but this Indispensable Lawn Product Can be Applied All Year Round to Maintain the Perfect Lawn. Iron Sulfate Can be Applied Wet or Dry. It is Applied Most Efficiently with a Knapsack Sprayer, or even a Watering Can. Simply Dilute with Warm Water to Make Solution for Sprayer or Can. Can also be applied Dry by Spreader, or Even Just Scattered by Hand.
- WHAT WILL IRON SULPHATE DO? There are Many Uses for Iron Sulphate on a Lawn or in the Garden. Green Keepers, Gardeners, Park Keepers, Sports Pitch Maintenance Operatives Use it For a Wide Range of Gardening, Grass, and Lawn Care Tasks. Iron Sulphate is an Iron Rich, Fast Acting, and Long Lasting Fertiliser That Will Encourage Strong Grass Growth and Healthy Dark Green Grass Colour. It is Often Applied to Create Superior Quality Golfing Greens. Iron Sulphate Will Also Help Prevent Lawn Disease.
- APPLICATION RATES: Iron Sulphate is Typically Applied at a Rate of Between 1 gram to 5 grams Per Square Metre, Depending on the Particular Use. 1 Kilogram of Our GUARD-EN-FORCE Iron Sulphate Will Usually Have a Coverage of 200 – 1000 Square Metres. Now that is a Garden Force with Value! Example Rates - Grass Greening can be Achieved by Applying Iron Sulphate to the Lawn at a Rate of 2 Grams per Square Metre. An Internet Search For Iron Sulphate Will Provide Lots of Information on Further Usage.
- WHY OUR IRON SULPHATE? Our Iron Sulphate is a premium quality, fine, dried powder, in Which Excess Water Molecules Have Been Removed. This gives More Product and More Power per Gram. The Powder Dilutes Down Easily With Lukewarm Water Into a Solution For Easy Application to Your Lawn. Our Re-sealable Clip Top Container Keeps the Sulphate Fresh and Dry for Use All Year Round. We have Over a Decade of Experience Which is Why Our Product is Used and Trusted by Gardening Experts and Enthusiasts

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B01FEDYHH4 |
| Best Sellers Rank | 109,647 in Garden ( See Top 100 in Garden ) 280 in Lawn Fertilisers |
| Brand | GUARD-EN-FORCE |
| Brand Name | GUARD-EN-FORCE |
| Country of Origin | United Kingdom |
| Coverage | 100 |
| Customer Reviews | 4.4 out of 5 stars 267 Reviews |
| Item Form | Powder |
| Item Weight | 17.64 Pounds |
| Item form | Powder |
| Item weight | 17.64 Pounds |
| Liquid Volume | 10000 Litres |
| Liquid volume | 10000 Litres |
| Manufacturer | TRADE FARM NI LTD |
| Number of Items | 1 |
| Part Number | TF101211 |
| Specific Uses For Product | Lawn Greening, Lawn Conditioning, Turf Hardening, Worm Cast Reduction |
| Specific uses for product | Lawn Greening, Lawn Conditioning, Turf Hardening, Worm Cast Reduction |
| Target Species | lawn grasses, Azaleas, Camellias, Rhododendrons, Heathers |
| UPC | 702142453088 |
| Unit Count | 10000 gram |

## Product Details

- **Brand:** GUARD-EN-FORCE
- **Item weight:** 8 kg
- **Item form:** Powder
- **Liquid volume:** 10000 Litres
- **Specific uses for product:** Lawn Greening, Lawn Conditioning, Turf Hardening, Worm Cast Reduction

## Images

![10KG IRON SULPHATE LAWN FERTILISER, LAWN FEED and GRASS TONIC. All Round Multi-Purpose Sulphate of Iron Lawn Conditioner, Fertiliser, Grass Greener & Turf Hardener. - Image 1](https://m.media-amazon.com/images/I/71oNhqgS8LL.jpg)

## Questions & Answers

**Q: Is the grass harmful to small livestock (rabbits and guineapigs)  once the lawn has treated?**
A: Sorry. I don't know the answer to that question as I don't have any small livestock. However if garden birds are anything to go by there seems to be no ill effect at all. I regularly have Robins, Blackbirds, Wood Pigeons, etc. pecking about on the lawn. They were there weeks before I started using the Iron Sulphate treatment on the lawn, during the process (which, I must admit, did alarm me because I wasn't sure if the treatment would harm them in any way) but, I'm pleased to say, they are all still around today. For garden birds and even a squirrel that unfortunately regularly visits the garden to dig up parts of lawn looking for buried food, I can honestly say, there have been no ill effects at all. The wildlife, I'm pleased to say, is still going strong.

**Q: Can this be used to kill moss on soil and rocks etc**
A: Yes it certainly can. Moss turns black and dies in anything from 1 hour to 24 hours.  However, on hard surfaces it will stain a rusty colour and this would probably happen to the rocks also. Some would say the rusty orange staining adds character but its not to everyone's liking.

**Q: can I still compost the grass after this has been used on the lawn?**
A: I would not advise this as the iron sulphate would cause damage to plants if you used the compost, also don't compost the ist 4 cuttings as that will allow the bulk of the iron sulphate to be removed from the lawn

**Q: How many tea spoons or table spoons do you add to a10 litre watering can to kill the moss ?? Thank You**
A: I can’t remember I calculated it from the instructions... sorry not much help !!!

## Customer Reviews

### ⭐⭐⭐⭐⭐ Product does a great job in greening the grass and browning the moss this early in the season
*by M***N on 19 March 2017*

Ord from Home and family. ord 14/3/2017 arrived 18/3/2017. This was a re-order. This product is great at 'greening' the grass and 'browning' the moss at a time of year when it's too early to use other such products. One dose sprayed on in Feb and one in Mar. I'll spray again in April and then switch to Scotts Lawn products. Oh yes whilst the lawn is fully shaded and so the grass is patchy what there is looks fine, no yellowing etc. So whilst the lawn will never sadly win any prizes it's nice to see what there is all nice and green. Happy bunny. Well update used throughout 2017 and didn't feel the need to use anything else to make the lawn look enviably green and lush. I've just (26/1/2018) used again to get an early start on suppressing the moss which in this continuous wet weather is everywhere at 600g per 12 litre sprayer. Great stuff and I'll be getting so more. Well another update lets see ord from same supplier in 2016/2017/2018 and 2020 works a treat on killing the moss which in March 2020 was covering 50% of the lawn following the first qtr rain in 2020. Looks like overseeding is needed. Grrrrr

### ⭐⭐⭐⭐ Fit for purpose
*by N***N on 21 January 2018*

Worked well to kill off thick moss, but dead material still needs removing. If you use too big a dosage your lawn will over blacken

### ⭐⭐⭐⭐⭐ Works As Intended
*by C***Y on 18 March 2025*

Used to kill moss in paddock. Didn't use immediately and found that the powder was compacted, so transferred to a bucket to crush lumps so it could be distributed using a spreader. Moss turned black within a day or so.

## Frequently Bought Together

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*Product available on Desertcart United States of America*
*Store origin: US*
*Last updated: 2026-07-10*