Lawnsmith Green-Up Ferrous Sulphate

Key Features
A soluble powder for liquid application
The best way to get rid of moss in lawns
Greens grass without causing growth

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For price comparison this is a 'Super Agro Pro' NOT a 'Super Green'!



Application rates:

To be mixed with water - 'no blockage' mixing instructions supplied with product

  • Green-up Rate: Year round; 0.5 - 1 gram m2 for a green-up anytime ground moisture is available
  • Hardening Rate: September to December; 1.5 - 2 grams m2 for cool weather disease resistance
  • Acidifying Rate: Spring & Autumn; 2+ grams m2 will temporarily lower pH/increase acidity
  • Worm Cast Reduction: Spring & Autumn; 2 grams m will temporarily reduce surface casting. May need up to 3 applications approximately 2-4 weeks apart
  • Moss Rate: September to May; 4-5 grams m2 in cool wet conditions
  • Maximum rate: 5g m2 in cool wet conditions normally from September to May

Do NOT use on grass less than 6 months old at rates higher than 2g/m2

Directions for Use

  • Supplied in re-sealable plastic tubs
  • A soluble iron sulphate powder for application as a liquid
  • Easily applied by sprayer or watering can with sprinkle bar
  • Use as standalone treatment or in conjunction with a lawn fertiliser
  • Do NOT mix with weed killer
  • Zero nitrogen gives green lawns without grass growth
  • Aids in disease resistance and worm cast control
  • Will keep indefinitely if kept sealed in the tub in a cool environment
  • Keep off hard surfaces as staining will occur
  • Lawn may be used once dry but staining can occur for up to 24 hours
  • Grazing pets may be allowed on after 3 cuts

Buying Guides


Season for Application
Early Spring, Late Spring, Summer, Early Autumn, Late Autumn, Winter,
Intended Use
Greening (minimal growth), Winterising,
Lawn Safety after Treatment
Pets that eat grass/weeds to be kept off for 3 cuts, Staining to feet may occur for 24hrs,
Soil Type
Clay, Loam, Sandy, Chalk,
Lasts for
Normal 4-6 weeks
Method of Application
By sprayer or watering can
Nutrient Content
NO Nitrogen, Iron, Sulphur,
Granule Size
Soluble Powder
Size and Coverage
2.5Kg Tub covers 500m2 @ 5grams or 2500m2 @ 1gram, 5Kg Tub covers 1000m2 @ 5grams or 5000m2 @ 1gram, 10Kg Tub covers 2000m2 @ 5grams or 10000m2 @ 1gram,
Product Type
Moss Control, Fertiliser, Pest & Disease,
Disease prevention, Lower pH - acidify, Reduce worm casting,
When to Use
Early Spring, Late Spring, Early Autumn, Late Autumn, Winter,

Customer reviews

4.8 / 5
620 reviews for Lawnsmith Green-Up Ferrous Sulphate
eKomi customer reviews
Stuart Harrison
fast acting and effective moss control
Rated 5 out of 5
peter Hall
used iron sulphate on my lawns to kill of moss 2 weeks later job done.Iwould recommend this product to family and friends.
Rated 5 out of 5
I've been looking for a liquid green up supplement that does not promote growth for a long time. I was using Ironite 1-0-1 until now procured via ebay from the US. It is a wonderful mineral supplement, but an expensive option.
Bought Lawnsmith Green Up Ferrous Sulphate and used it for the first time. It worked like magic. Green up on the very same day I applied. Unbelievable yet true. Mixing and application was easy, thanks to the instructions in the box. Nothing comes close. Instant green up without growth. Thank you Lawnsmith
Rated 5 out of 5
Andrew Ferrill
This is an excellent product and dose just what it’s supposed to do. Very pleased
Rated 5 out of 5
jim crosbie
Applied by watering can .
Good results
Rated 5 out of 5