Cheryl wrote:
On Sun 26 Aug 2007 08:02:07p, wrote in alt.home.repair
oups.com:

When its about 3 to 31/2 inchs you should mow it back to 2 1/2
to 3 and then keep it at that height, mowing about once a week,
so you don't take off more than 1/3 of the grass at a time.
Mowing it will actually speed it's growth, as there is a hormone
in the leaf blade tips that slows growth. When it's cut it will
encourage the grass to grow and spread out.

Thanks. I realized that I can't mow it. It got to that height, but
the slope is too steep for my lawnmower, and I decided that I won't
get out there with a weedwacker to trim the city's mess.

I've come into this thread late. Newly seeded grass is best cut using
hand shears. I don't know the area you are talking about, but good luck
to you and your knees!