Best Iron Sulphate Moss Killers of 2025

Toby Butcher Avatar
Toby Butcher
Last Updated: 1 Feb 2025

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Iron Sulphate Moss Killers are a type of garden supplement designed to eliminate moss growth in lawns, gardens, and other outdoor areas. These products are typically made from a blend of iron sulphate and other natural ingredients, and they work by changing the pH balance of the soil to create an environment that is unfavourable for moss growth. Iron Sulphate Moss Killers are a popular choice among gardeners who are looking for an eco-friendly and effective way to keep their outdoor spaces moss-free.

At a Glance: Our Top Picks

Premium Iron Sulphate Lawn Conditioner and Moss Killer Cover #TOP 1
Premium Iron Sulphate Lawn Conditioner and Moss Killer
ftb score rating icon 9.9
Ultima-Plus XP Iron Sulphate for Healthier Lawns Cover #TOP 2
Ultima-Plus XP Iron Sulphate for Healthier Lawns
ftb score rating icon 9.8
Intralabs Iron (II) Sulphate 2kg Lawn Conditioner Cover #TOP 3
Intralabs Iron (II) Sulphate 2kg Lawn Conditioner
ftb score rating icon 9.6

Top 10 Iron Sulphate Moss Killers

Premium Iron Sulphate Lawn Conditioner and Moss Killer

Premium Iron Sulphate Lawn Conditioner and Moss Killer Cover
Premium Iron Sulphate 5kg Tub | Lawn Conditioner, Moss Killer & Fertiliser | Fast-Acting Lawn Treatment for Greener, Healthier Grass

The Jennychem Iron Sulphate is a premium lawn care solution designed to enhance your lawn's health and appearance. This fast-acting formula promotes visible greening within just 1-2 days, making it perfect for lawns in need of iron replenishment. Its multi-purpose nature allows you to effectively kill moss while also nourishing your soil, ensuring a vibrant and lush lawn. Plus, the convenient 5kg tub is easy to store and covers up to 1000 square meters, providing ample coverage for small to medium-sized lawns.

What We Like
Fast-acting results in 1-2 days
Effective moss killer
Multi-purpose lawn care
Convenient storage tub
Covers up to 1000 square meters
#TOP 2

Ultima-Plus XP Iron Sulphate for Healthier Lawns

Ultima-Plus XP Iron Sulphate for Healthier Lawns Cover
Ultima-Plus XP Premium Iron Sulphate - Greens Grass and Hardens Turf for Healthier Lawns & Helps to Prevent Lawn Disease - Makes up to 5000L When Diluted & Covers up to 5000m2 (5 kg)

Features
Hardens Turf To Create Greener Grass And Helps To Protect Your Lawn Against Fungal Attacks And Disease
Helps To Transform Tired And Worn Looking Grass, Making It Greener And Healthier Easily
Super Easy To Use Formula That Delivers Amazing Results Quickly - Perfect For When Your Lawn Needs Some TLC!
Our Unique Formula Is Used By Professionals And Praised By Green Keepers, Lawn Keepers, Park Keepers, Sports Groundsmen & More!
Helps To Protect Your Lawn Against Lawn Disease, Keeping It Strong, Green And Healthy
#TOP 3

Intralabs Iron (II) Sulphate 2kg Lawn Conditioner

5060734913439
Intralabs Iron (II) Sulphate 2kg Lawn Conditioner Cover
Intralabs Iron (II) Sulphate Heptahydrate 2kg - Lawn Conditioner and Green Up

The Intralabs Iron Sulphate is a powerful lawn conditioner that helps to toughen your lawn while promoting a vibrant green colour. Its iron sulphate heptahydrate crystals dissolve easily, providing you with a convenient solution for lawn care. This product, also known as ferrous sulphate, is effective in controlling moss, ensuring a healthier lawn. By using this conditioner, you can enhance your lawn’s resilience against harsh conditions, making it look lush and inviting.

What We Like
Easy to dissolve crystals
Effective lawn toughener
Controls moss growth
Promotes greener lawn
#TOP 4

Cleenly Iron Sulphate Lawn Tonic 5kg

Cleenly Iron Sulphate Lawn Tonic 5kg Cover
Cleenly Iron Sulphate for Lawns 5kg (Makes up to 5000L When Diluted & Covers up to 5000m2) Pure Lawn Tonic Ferrous Sulphate of Iron Lawn Greener and Turf Hardener

Cleenly Iron Sulphate is an excellent choice for maintaining a vibrant lawn. This high-nutrient lawn feed strengthens your grass, ensuring it remains strong and healthy throughout the year. If you desire a lush, green lawn that stands out, applying this tonic will help achieve that goal. Additionally, it hardens the turf, providing protection against potential lawn diseases. With its long-lasting formula, nutrients are gradually released into the soil, giving you extended benefits and less frequent applications.

What We Like
Strengthens lawn health
Enhances lushness and colour
Prevents lawn diseases
Long-lasting nutrient release
#TOP 5

Elixir Gardens Lawn Sand and Moss Killer

Elixir Gardens Lawn Sand and Moss Killer Cover
Elixir Gardens Lawn Sand & Moss Killer Treatment | Turf Green Up with Iron Sulphate | 4-0-0+3Fe | 10kg Bag | Treats 125 sq. meters

The Elixir Gardens Moss Killer is an excellent solution for achieving a moss-free lawn. It effectively kills moss while nourishing your grass, allowing for a healthier, greener appearance. This granular product is easy to apply by hand or with a spreader, making it convenient for any gardener. Additionally, it enhances drainage in heavier soils, which is particularly beneficial for lawns that struggle with water retention. With nitrogen and iron included, you can give your lawn a year-round boost and improve its overall vitality.

What We Like
Effective moss control
Easy to apply
Nourishes and greens lawns
Improves soil drainage
Year-round lawn boost
#TOP 6

Cleenly Iron Sulphate Lawn Tonic 10kg

Cleenly Iron Sulphate Lawn Tonic 10kg Cover
Cleenly Iron Sulphate for Lawns 10kg (Makes up to 10000L When Diluted & Covers up to 10000m2) Pure Lawn Tonic Ferrous Sulphate of Iron Lawn Greener and Turf Hardener

Cleenly Iron Sulphate is an excellent lawn feed that enhances the strength and resilience of your grass, ensuring it looks lush and vibrant. By hardening the turf, it helps prevent lawn diseases, giving you peace of mind. The long-lasting formula gradually releases nutrients into the soil, keeping your lawn nourished over time. For optimal results, applying it just before rain ensures the granules are effectively absorbed, making lawn care a breeze for you.

What We Like
Strengthens grass for longer
Prevents lawn diseases
Long-lasting nutrient release
Easy application before rain
#TOP 7

Elixir Gardens Lawn Sand & Moss Killer Treatment

Elixir Gardens Lawn Sand & Moss Killer Treatment Cover
Elixir Gardens Lawn Sand & Moss Killer Treatment | Turf Green Up with Iron Sulphate | 4-0-0+3Fe | 20kg Bag | Treats over 310 sq. meters

The Elixir Gardens Moss Killer is an excellent choice for achieving a moss-free lawn. Its formulation effectively kills moss and nourishes your grass, promoting a lush green appearance. This product also enhances drainage, making it ideal for lawns on heavy soils. Easy to apply by hand or with spreaders, it saves you time and effort while ensuring your lawn receives the essential nutrients it needs for healthy growth throughout the year.

What We Like
Moss control and lawn nourishment
Improves drainage in heavy soils
Easy to apply by hand or spreaders
Professional-grade treatment
Contains essential nitrogen and iron
#TOP 8

Ultima-Plus XP Iron Sulphate for Lawns

Ultima-Plus XP Iron Sulphate for Lawns Cover
Ultima-Plus XP Premium Iron Sulphate - Greens Grass and Hardens Turf for Healthier Lawns & Helps to Prevent Lawn Disease - Makes up to 2500L When Diluted & Covers up to 2500m2 (2.5 kg)

Ultima-Plus XP Iron Sulphate is designed to rejuvenate your tired and worn grass, transforming it into a lush, green lawn with minimal effort. It hardens the turf, providing a protective barrier against fungal attacks and lawn diseases, ensuring your grass remains healthy and vibrant. With this product, you'll find it easy to maintain a strong lawn that resists common ailments, making it ideal for anyone looking to enhance their outdoor space. Enjoy the quick results and give your lawn the care it deserves.

What We Like
Transforms worn grass easily
Protects against lawn diseases
Quick and easy to use
Praised by professionals
#TOP 9

Westland Sulphate of Iron for Acid-Loving Plants

20600027
1.5 kg
Westland Sulphate of Iron for Acid-Loving Plants Cover
Westland 20600027 Sulphate of Iron Plant Food for Ericaceous Plants, 1.5 kg

The Westland Sulphate of Iron is an excellent plant food designed specifically for acid-loving plants. It promotes stronger root growth, allowing your plants to establish themselves more effectively in the soil. You will notice richer, greener foliage, enhancing the overall appearance of your garden. Additionally, this plant food acidifies the root zone, creating the optimal environment for your acid-loving plants. With its ability to prevent leaf yellowing, you can enjoy healthier plants that thrive throughout the growing season.

What We Like
Long-lasting feed
Stronger root development
Enhances foliage colour
Acidifies root zone
Prevents leaf yellowing
#TOP 10

Cleenly Iron Sulphate Lawn Tonic 2.5kg

Cleenly Iron Sulphate Lawn Tonic 2.5kg Cover
Cleenly Iron Sulphate for Lawns 2.5kg (Makes up to 2500L When Diluted & Covers up to 2500m2) Pure Lawn Tonic Ferrous Sulphate of Iron Lawn Greener and Turf Hardener

Cleenly Iron Sulphate is an exceptional lawn feed that helps keep your grass strong and healthy, regardless of the weather. By using this product, you can achieve a lush, green lawn that will impress everyone in your neighbourhood. It also hardens turf, which helps prevent lawn diseases before they can take hold. Additionally, the long-lasting formula gradually releases nutrients into the soil, ensuring your lawn remains nourished for longer. For optimal results, apply before rain to allow the granules to fully penetrate the soil.

What We Like
High-nutrient lawn feed
Prevents lawn diseases
Gradual nutrient release
Easy application before rain
Buying Guide Image

Frequently Asked Questions (FAQs)

1. How do you use iron sulphate for moss?

For moss control when using a knapsack sprayer, you will need to mix 4 grams of iron sulphate with 200ml of water to cover 1m2. For example if you have a 16 litre knapsack sprayer, that's 320g mixed with 16 litres of water to cover 80m2.

2. What strength iron sulphate kills moss?

To work out how much iron sulphate you need, use the same guidelines as for watering with a can. That's between 1 and 2 grams of powder per square metre of your lawn for fertilising. If you want to kill moss, you'll need between 4 and 5 grams per square metre.

3. When should I put down iron sulphate on my lawn?

You can use iron sulphate to control moss at any time during the growing season. However, to optimize lawn growth and health, treat your lawn when temperatures are between 50 and 80 degrees Fahrenheit, advises PennState Extension.

4. What happens if you put too much iron sulphate on lawn?

If you accidentally or unknowingly apply too much iron to your lawn, you will cause it to burn the grass blades, causing problematic black-green discoloration of lawn grasses. This often happens when using too much fertilizer. Severe darkening of a grass blade is the most common sign.

Editor's Notes

During our iron sulphate moss killer research, we found 66 iron sulphate moss killer products and shortlisted 10 quality products. We collected and analyzed 8,249 customer reviews through our big data system to write the iron sulphate moss killers list. We found that most customers choose iron sulphate moss killers with an average price of £20.39.

The iron sulphate moss killers are available for purchase. We have researched hundreds of brands and picked the top brands of iron sulphate moss killers, including Jennychem Industrial Chemicals, ULTIMA-PLUS XP, Intralabs, Cleenly, Elixir Gardens. The seller of top 1 product has received honest feedback from 403 consumers with an average rating of 4.3.

Written by
Toby Butcher Avatar

Toby Butcher is a Horticulturist, and he earned his title as a Master Gardener in 2016. Toby has acquired a 25-year experience as a home gardener planting, designing, grooming vegetables and flowers. He is the leader of a plant group in Durham. Toby owns a blog where he publishes articles on growing and growing your flowers at home, in a vase, or in a garden.