wrote:

I have an d aerator that puts 4 inch holes in lawn. I spent 10 hours
aerating the entire lawn, and hand inserted grass seeds into each
hole.
I am wondering if this will be ok. As Ive done it Ill just have to
see. Im sure some of the seeds landed less than 4 inches.
I also covered the entire land in 1/2 inch layer of sphagnum peat
moss.

I would reseed. 4 inches is too deep. Also the seed needs to be much
closer spaced than the spikes on an aerator.

First the ground should be worked so that it is loose. Then the seed is
surface sewn at the rate on the package, then raked lightly and then
covered with straw for shade and to hold the moisture in.
--
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