Sulphate of Iron
The common moss that is present in many lawns is Springy Moss; its properties are made up of over 90% water – Sulphate of Iron will quickly expel the water and allow the grass to strengthen.
Even after as little as one hour, moss will start to blacken; after two days, the moss content will have reduced and turned dark brown whilst the grass will have turned extremely green.
Always try to apply Sulphate of Iron on a dry still day but with rain imminent – ideally no longer than 12 hours. (this is to avoid scorching) the moisture dissolves the sulphate of iron.
Once the moss has died back, you can scarify out the debris – ideally 5-14 days after application.
Suitable for use with spreader.