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Iron Sulphate Soluble 25kg

£35.40 inc VAT £29.50 ex VAT
QTYPrice per itemSaving
1 - 4 £35.40 £29.50
5 - 19 £34.20 £28.50 4%
20+ £31.80 £26.50 11%
  • Can be used all year round.
  • Protects grass against frost and diseases in the winter months.
  • Ideal for treating large areas, for example horse paddocks and amenity grassland.
  • Fully dissolvable in water.
  • Built in acidifier system that slows oxidisation.
Please note packaging may vary.
Please note that this product may need vigorous agitating to loose
Iron Sulphate by its nature compacts very easily.

To prevent this, some manufacturers will add a non-soluble anti-caking agent to the iron, and this will leave a sediment in your sprayer and block nozzles.

Our product contains a small amount of a soluble anti-caking agent that helps to stop some of the compaction, but not all and so the iron you receive will be in a compacted state.

This should not be confused with iron that has got damp and gone hard.

This product will break up with agitation and any lumps will dissolve very easily in water with no residues and this would not happen to iron that had got wet and solidified.

Full Description

Iron sulphate soluble is used to green and toughen up grass as well as suppress the growth of moss. This high-quality 19% iron formulation can be used all year round, although it is particularly beneficial during colder spells of weather as it will help strengthen the plant against frost and disease. Iron is absorbed by the leaf giving rapid results and has been known to blacken moss within hours. This product is fully dissolvable in water although good agitation is advised in order to avoid blocked nozzles. This product is ideal for treating large areas such as horse paddocks & amenity areas.

Apply by knapsack or boom sprayer to ensure there is good coverage of the grass and moss. Use 500L of water per hectare to help improve coverage of thicker swards of grass. This particular Iron sulphate has a built in acidifier system which helps to slow the oxidising effect which in turn blocks nozzles & sprayers.

**Due to recent changes in the law, products which contain ferrous sulphate can no longer be claimed to have control against moss. This is because any product which 'controls' moss is now classed as a herbicide, and this requires the product to have an expensive and complex approval. Due to this, we are unable to claim that this product will control moss; In spite of the fact that the product formulation has not changed since when it was used to control moss with very good results**

Because of the very hygroscopic nature of product it is prone to mild compaction, bags may need to be agitated to break that compaction before use.


** Iron Sulphate is very hygroscopic and will absorb water on contact with moisture in the air.  Storage recommendations are as per the MSDS, store in a tightly-closed, original container in a dry, cool and well-ventilated environment, with store temperatures not exceeding 24°C.

Do not store near materials with strong oxidising agents, alkalis, soluble carbonates. **

Our Recommendation

  • Always read the product label before use.
  • Save money and time and mix with Blue-Gem Dye to ensure no areas are missed or overdosed.
  • Use in the Spring or Autumn when treating moss.
  • If you require a high iron granular fertiliser look at Nutrigrow 4-0-4+9fe.
  • If you are looking for a liquid alternative then try Ferro-Gem 10L.
  • If you want to kill weeds at the same time then why not try Weed Feed & Moss Killer.
  • Always wear protective clothing, such as Chemical Resistant Gloves, when handling Iron sulphate.

Technical Specification

ProductIron Sulphate Soluble 25kg
BrandIron Sulphate
Period Of UseAll Year Round
Pack Size25kg
Active Ingredient19% Ferrous Sulphate
Application MethodKnapsack, Boom Sprayer, Watering Can
Knapsack Sprayer Rate200-500g per 10L of water covers 200m²
Area of UseLawns, Sports Turf, Amenity Turf
Boom Sprayer Rate10-25kg in 500L per hectare
Pack Size Coverage10,000 - 25,000m²
Safe For Use OnGrass, Lawns, Sports Turf
Treats (Pest / Weed / Disease)Moss
Granule SizePowder

Help & Advice

Video Guide

How to fertilise a lawn or paddock

Video Guide

How Does Fertiliser Work?

Problem Guide


£35.40 inc VAT £29.50 ex VAT
QTYPrice per itemSaving
1 - 4 £35.40 £29.50
5 - 19 £34.20 £28.50 4%
20+ £31.80 £26.50 11%
Click & CollectIn Stock for Click & Collect
DeliveryIn Stock for Next Day Delivery
DeliveryIn Stock Delivery or Collection
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