Re: Growing grass where I removed trees?
I personally have never had good luck with seed. If you can get it to germinate, it takes months for it to even think about filling in. If you mixed soil and compost as you backfilled the holes, then I doubt the problem is with the soil itself and more about bad seed, not enough water seed must be kept moist to germinate, otherwise it either stays dormant or rots in the ground.
If it were me I'd either plant another tree in those locations or I'd lay sod. If the rest of the yard is in sad shape, you might think about sodding everything rather than just the patches, that way you'll have a great looking new lawn.
I suffer from CDO ... Its like OCD, but in alphabetical order, LIKE IT SHOULD BE!!!