Green Machine – Liquid Iron Sulphate 1L


  • Liquid Iron Sulphate with Nitrogen
  • Rapidly greens grass & turns moss black
  • Use all year (even in winter)
  • Apply using sprayer or watering can
  • 1L Green Machine covers 330m²

A fast and easy way to green up your lawn – This liquid iron will turn your lawn dark green and includes added manganese and nitrogen to help your lawn look its best. 1L covers up to 330m², simply add the required amount to your watering can or sprayer and fill with water!
How to use
Mix 300ml product with 3-4 litres of water to cover 100m² Spray evenly on grass and leave to be absorbed by the leaf No need to water this product in Treatment can be repeated every 4 weeks For outstanding results use in conjunction with: -> Dark Green Lawn in (spring / summer) -> Dark Green Autumn in (Autumn)

In stock

iron sulphate for lawns
Green Machine - Liquid Iron Sulphate 1L £20.99
FREE Delivery - Order Now to get it Friday

• Order before 2pm for free next day delivery (Mon-Fri)

• Saturday delivery available

Delivery charges apply to postcodes AB31-56,IV,KA27-28, KW,PA,PH,HS,ZE,IM,BT

LocationShipping CostShipping Method
England, Scotland, WalesFreeNext Working Day
Scotland (Out of range)£7.9924-48 Hours
Scotland Highlands£9.9948 Hours+
Northern Ireland*£7.9948 Hours
Isle of Man, Scilly & Wight£7.99-£9.9948 Hours+

*Northern Ireland

We can only send lawn feeds and tools to Northern Ireland. Seeds cannot be shipped due to export restrictions so they will need to be removed from your cart to complete your checkout

Read the full Delivery Policy

 Saturday Delivery Available

Over 70,000 UK Orders

Choose your way to pay

secure checkout

Customer Reviews

Based on 31 reviews
mark b.
Garden up grade

Green machine - liquid iron sulpate are high quality stuff works well together makes the blade of grass nice and thick and looks amazing when it's cut them stripes don't half stand out even more when the sun beats down on them exellant stuff highly recommended

Derek A.
Lawn care at its best

Been using all lawn feeds for years and this is the best one I’ve ever used quite simply the best

Peter D.

Great product and great results definitely will be buying again.

Fast Acting

Greens Grass

Covers 330m²

Easy to Apply

Liquid Iron Sulphate for Lawns

Our advanced liquid iron formula includes nutrients such as iron, nitrogen and manganese that are vital for strong healthy growth.

With its fast-acting properties, Green Machine ensures quick results, transforming dull and lackluster lawns into a vibrant sea of green within days.

Mix 300ml per 100m² with Water

Apply with watering can or sprayer

Leave to dry on the grass leaf

Works well with Spring/Summer Feed and Autumn / Winter Feed

iron sulphate for grass

HD Colour for Your Lawn

Not only does Green Machine enhance the green colour of your lawn, but it also promotes stronger, thicker grass that is more resistant to common lawn issues.

By promoting chlorophyll production, our liquid iron sulphate formula aids in photosynthesis, resulting in a greener and more vibrant lawn.

Easy to Apply

Application is a breeze with Green Machine.

Simply mix with water, apply with a sprayer or watering can and watch as your lawn undergoes a remarkable transformation.

Rest assured, our product is safe to use on all types of lawns and will work on any type of lawn

Ultimate Bundle

Save 10% with the Autumn / Winter Bundle
– Autumn / Winter Lawn Feed
– Liquid Seaweed
– Green Machine Liquid Iron

Autumn Lawncare Products (on pdp)

Additional information

Weight 1.25 kg
Dimensions 22 × 9 × 9 cm
Use in

Spring, Summer, Autumn, Winter