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Old 09-01-2012, 10:31 AM
Smallaxe Smallaxe is offline
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Join Date: May 2007
Location: Central Wisconsin
Posts: 10,091
Dead grass clippings will hold water and allow it to seep into the ground the same way any other mulch would do... as the grass clippings break down they will aid in the formation of aggregates that build a soil structure that aids in water infiltration, retention, then ulitmately perculation and drainage...
They also make a wonderful seed bed...

Living thatch is the culprit that is water-proof and holds more in puddles than it allows to soak in... de-thatching to eliminate that type of thatch is a real waste of time...
Fot living thatch you want to aerate or possibly verticut your way through it but scratching it up wich a de-thatcher is pretty inconsequential...

Remember I'm only speaking for cool-season grasses and make no claims about warm-season grasses at all...
Now that I know that clay's texture(platelets) has nothing to do with water infiltration, percolation, or drainage
,,, I wonder what does...
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