Iron Sward Moss Killer & Lawn Greenup 12%Fe + 5% Mg
Iron Sward Moss Killer & Lawn Greenup 12%Fe + 5% Mg

Iron Sward Moss Killer & Lawn Greenup 12%Fe + 5% Mg

Lawn Area (m2):

Deepen the green. Kill the Moss.

Powerful moss killer and long-lasting, rapid green up of grass sward.

Iron Sward Moss Killer & Lawn Greenup 12%Fe + 5% Mg hero image

Deepen the green. Kill the Moss.

Powerful moss killer and long-lasting, rapid green up of grass sward.

Your Image Description

Deepen the green. Kill the Moss.

Powerful moss killer and long-lasting, rapid green up of grass sward.

Your Image Description

Iron Sward Moss Killer & Lawn Greenup 12%Fe + 5% Mg

Iron Sward Moss Killer & Lawn Greenup 12%Fe + 5% Mg
Iron Sward Moss Killer & Lawn Greenup 12%Fe + 5% Mg

Iron Sward Moss Killer & Lawn Greenup 12%Fe + 5% Mg

Iron Sward is an Iron Sulphate lawn treatment which kills moss and rapidly greens up lawns.

  • Kills (Blackens) Moss ready for scarifying/rake removal
  • Rapidly greens up lawn
  • Harden lawn against winter stress
  • Provides protection against hard frost.

Enter your lawn area:

Don't know your lawn size? Use our online measuring tool.
Lawn Size (m2)
£8.47

Product Detail

This granular iron lawn treatment is specially formulated to effectively eliminate moss while quickly promoting the lush, green growth of grass. With its powerful moss-killing abilities and rapid green-up action, this product helps transform your lawn into a healthy and vibrant landscape.

 

Delivery & Returns

We have a number of delivery options available for your location, which are shown at the checkout.

 

Subscription Deliveries are sent out on a scheduled seasonal timetable.  

 

For more information about delivery and returns see the delivery policy and refund policy

Safety Data Sheets

Product Support

**WARNING** - Iron Sulphate can cause staining to hard surfaces (patios/decking/carpets etc). Apply carefully and remove any excess from non-lawn surfaces. Thoroughly clean footwear before wearing on hard surfaces or inside.

This is a granular product that can be cast using a bucket or hand fertiliser spreader.

Apply in dry conditions and sweep/blowing of excess of hard surfaces, such as patios to prevent staining!

Water in well after application (or apply before rain is forecast) and allow to dry before allowing children/pets on the area.

Please refer to the product Safety Data Sheet for full product information and always read the label before applying.

Nutrients / Ingredients

Iron (Fe) 12% + 5% Magnesium (MgO)

Application Rate / Coverage

Application Rate:

35g/m2

Coverage:

~30m2 per KG

Frequently Asked Questions

FAQs

Q: What is the difference between granular iron sulphate and liquid iron sulphate treatments?

A: Liquid Iron can green up the lawn as quickly as just a few hours but typically lasts only 1-2 weeks. Granular Iron Sulphate can take a few days to show its effects but lasts 4-6 weeks. The most interesting effect is with moss. Granular treatments penetrate moss much deeper and reduce the need for multiple applications. Iron Sward is a granular treatment lasting 4-6 weeks and is highly effective at sustaining grass green-up and moss destruction.

Q: What does the added Magnesium do in this Iron Sulphate Treatment?

A: The addition of Magnesium enhances chlorophyll production to give your lawn a deep, vibrant green color. The homogeneous granules ensure an even color distribution on the lawn, even when applied at a lower rate.

Q: When can I apply this iron sulphate lawn treatment?

A: Iron Sulphate can be applied at any time of the year, providing there is no risk of a frost. Water in well if no rain is expected.

Q: How long does this treatment last?

A: Iron Sward iron sulphate lasts 4-6 weeks per application. Iron doesn't move freely in the grass plant, so regular applications are recommended.

Q: What happens to moss after I have applied an Iron Sulphate treatment?

A: Iron sulphate kills moss, turning it black and crispy. Once the moss is dead (after around 2 weeks), you can remove it with a rake or scarifier. It is worth considering seeding the areas from which you have removed moss to prevent the moss from returning. If the area is prone to moss returning, consider addressing the root cause. Improve drainage, improve sunlight access and use a lawn seed that is more resilient to shaded conditions.

Kills Moss

Even at normal application rates, with 12% Iron, Iron Sward Iron Sulphate will blacken moss, allowing you to rake or scarify it up. It works quickly too, moss will start to turn black within 4 days and will be ready for scarifying within 2 weeks.

Your Image Description

Intense Green Lawn

More than just Iron, the added Magnesium teams up with the Iron Sulphate to produce the most intense green lawn. You'll start to notice the difference in jus 4 days, and it will last for over 6 weeks!

Your Image Description

Provides a hardy sward

Iron is essential for producing a hardy sward that is resilient to disease, stresses and heavy use. Want a lawn that is family-friendly and looks great? You need Iron Sward Iron Sulphate!

Your Image Description

Supports synthesis of chlorophyll

Iron is a nutrient that doesn't move around the grass plant very well, so regular applications are essential to prevent chlorosis (the yellowing of the grass leaf) and keep your lawn looking vibrant green.

Your Image Description