Best Iron Sulphate Moss Killers of 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
Top 10 Iron Sulphate Moss Killers
Premium Iron Sulphate Lawn Conditioner and Moss Killer
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.
Ultima-Plus XP Iron Sulphate for Healthier Lawns
Intralabs Iron (II) Sulphate 2kg Lawn Conditioner
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.
Cleenly Iron Sulphate Lawn Tonic 5kg
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.
Elixir Gardens Lawn Sand and Moss Killer
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.
Cleenly Iron Sulphate Lawn Tonic 10kg
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.
Elixir Gardens Lawn Sand & Moss Killer Treatment
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.
Ultima-Plus XP Iron Sulphate for Lawns
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.
Westland Sulphate of Iron for Acid-Loving Plants
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.
Cleenly Iron Sulphate Lawn Tonic 2.5kg
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.
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.
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.

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.