I have an area approx 20x20 that used to have a nice lawn. Over the years it has thinned out mostly I think due to the maturing of the maples that shade them from most of the sun. The area is a slight grade but less than 10 degrees. Right now it is pretty firm dirt with a scattering of grass. I'm tempted to rent a tiller and see if I can till up 6 or so inches of the soil and plant some sort of shade grass if I can find one that would be good in my area which is CT. I do plan to plant some ground cover around the edges but don't want to do it for the whole area and mulching would tend to run off I think. Any suggestions about how well I might make out on an area like this and any grass suggestions also appreciated. Thanks.