"RoyDMercer" wrote in message ...
"Dave" wrote in message
om...
I have a section of lawn in a shady area that seems to have become too
miserable to keep grass growing thickly. The grass is sparse. Applying
fertilizer and grass seed does not seem to have much effect. It is
clay soil and well packed. I don't know if I need to apply something
or simply give up and rototill in a load of horse manure? Any
semi-expert opinions? Thanks.

I think you have the right idea. The best way to improve clay soil is by
adding organic material. The organic material will encourage earth worm and
beneficial microbe activity.


First thing I'd check is if there are tree surface roots in the area.
It's impossible to grow grass with species like Norway maples in the
area. Trees like these have surface roots that take all the nutrients
and choke off the grass.

I agree with adding organic material. I'd do it by renting a core
aerator which will punch holes in the soil and help reduce the
compaction. After aeration, spread the organic material, which will
make it's way into the holes. If you get this done now, you can
reseed with a good shade mix in the fall.