Well, considering I've got a lovely grass border on the edge that is growing into the ring along with all the bloody weeds, I'd probably fail at planting grass anyway.
I've already lost over a dozen fir trees on the west side of the house and property. One's that I rely on as a wind break. I've got 8 more that are dying and will be taken down next spring possibly. Then I have to plant about 8 more to replace the last ones and hope they help in a few yrs anyway.
An ex-SO used to cut hay and fertilize the oats figuring he had to luck out on one or the other!