Iron can stain hard surfaces. Always be very careful about your patio areas, paving, fencing, stonework, etc. Iron sulphate will cause rust coloured stains on hard surfaces. Do not let children or pets onto treated areas as they can carry sulphate onto hard surfaces and cause stains.

Ferromel 20 Iron Sulphate Premium Moss Killer, Lawn Conditioner & Lawn Feed is a great product. Its versatility is that you can use it to green your lawn or to kill moss, and it can be applied dry or mixed with water and applied using a good garden sprayer or watering can.Although you can scarify in spring, you’re in a race against weed growth, whereas in autumn time, the weeds are slowing down. You can also be more vigorous in your scarification in autumn than in spring. If your grass starts turning yellow and gradually appears burned, scorched and brittle, chances are there’s too much iron sulphate on the lawn. Iron sulphate is a nutrient which can improve the health of the lawn if there are deficiencies in the soil. My Experience

Once you have covered the entire area with your mix in the watering can it does no harm at all to apply another covering of just water to help wash the sulphate into the soil.You can work on clayey and compacted soil for better drainage. Or create a berm to redirect the water flow. Doing so will also help improve the health of your lawn. The wrap-up We recommend applying 1 gram of iron sulphate per litre of water per square metre. This will offer the perfect greening effect to your lawn without any side effects like burnt or discoloured grass. Grass usually doesn’t need a large amount of iron. In fact, it’s usually only beneficial to apply extra iron if you have a soil test indicating iron deficiency. But go overboard with iron sulphate, and you risk burning the grass while increasing soil acidity. Lawns simply don’t like too much iron sulphate.

Using sulphate at a rate of more than 5 grams per square metre can scorch the grass. If this occurs then the grass will usually recover if the lawn is watered well for the next 1-2 weeks. This is also sold as Moss Killer. It is just a sulphate of iron and as such will cause no growth therefore being an ideal treatment to enhance the lawn without worrying about whether or not conditions are right for mowing. You can tell too much thatch if you get down close; you’ll see a brown webbed layer in between the grass and feel the grass turning spongy when you walk on it. Does scarifying remove moss? If you’re looking to control, kill or contain moss, then here’s what I’d recommend. Apply an iron based product a bit more frequently like once every couple of months.

Applying lime to your lawn can help solve the acidity problem. It will increase the soil pH and even out the iron levels. What’s more, lime will also add other nutrients like calcium and magnesium to the soil. Moss in the lawn is not just unsightly. It also steals nutrients, leaving your turf grass undernourished. The final step is to water the lawn thoroughly. Your lawn is now in fight mode as its rhizomes send out new shoots. So water it well to help it in its recovery mode. Ensuring in dry spells that you water it twice a week for the first 2 weeks or so if need be. 8. Consider top-dressing the lawn