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Liquid Iron Sulphate for Lawns
Green Machine is a fast-acting liquid iron product to rapidly green up any lawn.Greens Grass Fast
It’s packed with Iron Sulphate, Nitrogen and Manganese that will green up your grass and lawn in a matter of days.
This fast acting liquid iron product starts working instantly as it’s absorbed by the plant leaves.


Liquid Iron Sulphate
1L covers 330m²
Simply add the green machine liquid iron to your knapsack, fill with water, and start spraying!
It’s that simple – no dissolving required.
Benefits of Iron Sulphate
Apply in spring / summer to feed your grass and quickly green up the lawn.
Applied in autumn / winter this product will help harden the turf and provide lush colour – even in cold temperatures

Garden Lawncare Guy Fertiliser
Made in the UK
Produced in the UK and tried and tested for UK lawns.
Expert Advice
Free expert advice for you to improve your lawn.

Works on Any Lawn
Professional grade fertiliser that works on any lawn.
Fast & Free Delivery
Free next working day delivery to most UK postcodes
How to apply Liquid Iron Sulphate
- If applicable rake or scarify to remove moss / debris
- Diluate the required product with water
- Apply using a sprayer or watering can
- Do not water in, leave to dry on the leaf
Works well with Spring/Summer, Autumn or Winter fertiliser
Apply 2-4 weeks before using grass seed
Contains Ferrous Sulphate – which can irritate skin and eyes
Ultimate Winter Bundle
Save 10% and try the Winter Lawn Bundle
- Winter Lawn Feed
- Liquid Seaweed
- Green Machine Liquid Iron