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Scarifying process

Just interested to know what months of the year you scarify?

Do you use a sulphate of iron or other treatment to kill off the moss before or after scarifying, and if so why before or after?

I have heard different people say different things so thought it would be interesting to have peoples views.

I have some lawns that need some deep scarification (4cm depth of moss!) so will need over seeding afterwards.

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  • September and march are best times of year, use a moss treatment such as iron before to kill it off then scarify after to remove it
  • Thanks You. March is better than September at least work wise for me because its before the grass cutting season starts unlike sept.

    David Miller said:

    September and march are best times of year, use a moss treatment such as iron before to kill it off then scarify after to remove it
  • I've been scarifying this week, on the worst infestations I treat with iron first, but on light infestations I scarify and then aerate and feed according to the specific needs of the lawn. Its hard to describe a fixed rule for all lawns, that said Once you sort out the route cause of the moss it tends not to return - usually compacted clay soils in my case.

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    Generally scarification is done in Spring and Autumn with a lighter scarification in spring, and heavy in autumn, followed by aeration, seeding and top dressing for winter. How often you scarify generally depends on the environment (e.g. shade, size) and the thatch build up - sometimes a monthly scarification is needed especially on sports grounds so it's quite dependent on conditions.

    I would say kill off the moss around 2 weeks before scarification as this aids the thatch removal process by breaking down and loosening the debris to be removed, if you do it after it may damage the remaining turf. 

    There is a brief article about scarification processes on our website - just click here

    - Acacia Rentals

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