I have been Aerating and Thatching lawns only for years. I get customers asking if I overseed. So I have decided to start. I do not know grasses. For my area, This is what I was told to use from our local farm and garden supply. $5/ lb per 250 sf
Midnight Kentucky Bluegrass 99.7 % 94% germ.
Mercury Kentucky Bluegrass 97.7% 94% germ.
Pennlawn Creeping Red Fescue 96.85% 94% germ.
starter fertilizer 12-18-15