ABOUT SULPHATE OF IRON:
Sulphate of Iron is a by-product of the steel plating or coating industry it is most commonly used not as a fertiliser but for controlling moss in turf grass lawns.
There can be a number of reasons for having large areas of moss in a lawn here is a list of the most common reasons below:
Too shady on the south side or under trees
Too wet due to poor drainage
Too dry due to compaction or drought prone areas
Too much thatch normally a case of poor lawn maintenance
Soil fertility is to low due to poor lawn maintenance
Although moss can be controlled using Sulphate of Iron the truth is it will return unless the overriding reason for it being in the lawn is rectified.
Sulphate of Iron should be applied from late Autumn through to early Spring – best to do it when conditions are damp and mild.
Apply with dry with broadcast spreader or wet with watering can or knapsack.
Once applied water in with a garden hose or apply just prior to rain.
Moss will quickly turn black leave for 2 to 3 weeks then remove the dead moss by raking or scarifying
Re-seed the bare patches with appropriate lawn seed and fertiliser.
Application Rates: Apply approx. 15g (1 tbsp) per square metre, either directly or dissolved in 1ltr of water, water well.
Caution: Be Careful when handling Sulphate of Iron it will stain paths / paved areas and clothes.