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I have a lot of fairly thick, short moss growing on my lawn. The grass seems to be growing through it and looks healthy, but I still have a carpet of moss. I try raking it, but it's relentless and continues to grow. What can I do about this?

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Good luck. I've aerated, top-dressed, reseeded, gypsumed, raked, used chemicals... with no significant results, except maybe the chemicals (Moss Away), which I'm reluctant to use very often. This is in a shady area with occasional sunlight during the day, with lots of Norway Maple roots. – Ed Staub Apr 11 '12 at 17:45
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I know it's kind of subjective, but why not just learn to love moss? – Peter Turner Apr 12 '12 at 17:42
I'm new to a moss-loving region. I'm hoping I'll just learn to love it. In the interim, I have been told that occasionally using a dethatching blade on your mower can help. (I will say, a LOT of moss can make for a less usable yard, though...hard to play soccer on a foot of spongey ground) – DA. May 21 '12 at 4:00

1 Answer

Moss cannot compete with grass under ideal conditions for grass. You could cultivate a moss garden. It never needs mowing!

To improve conditions for grass you can do some or all of these:

  • more light: can you cut back any trees or shrubs to let more light in?
  • reduce compaction due to foot traffic or absence of organic matter
    • add a hard path where people walk
    • sow more grass seed and then top dress twice to 1/4" to 1/2" yearly with weed free compost or topsoil
    • aerate the soil: the best method is to physically remove plugs of soil (takes more work than using a hard rake)
  • drainage: does water sit in puddles after a rain? some regrading to let water flow off the turf might help
  • use a hard rake to physically remove the moss before seeding and top dressing
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Doing a soil test is a really good idea. Finding out the pH, % organic matter, and NPK numbers can help you determine what you can do to improve the conditions for growing grass. – JGurtz Jun 6 '12 at 18:44

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