I am in north Jersey. I graded my backyard around 15000 sq ft. I put down Scotts Sun and Shade with Thermal Blue along with Scotts starter fert with crabgrass preventer. I just loosened up the top 2 inches on the top soil that I put down and back racked the seed and fert in. No other topdressing. I did this 3 1/2 weeks ago, the lawn is very spotty and still is not long enough for the first cut. I have set up 7 sprinklers around the yard and water in the morning and the evening. I overseeded again 8 days ago then rolled that seed lightly. I did not work the seed in though as I did not want to kill the new grass that was growing from the first round of seed. At this point the lawn is ok in some areas but for the most part it is spotty and bare in many areas. Is there anything I can do to get a decent lawn in this summer and? I will attempt to slice seed in the fall also. I suspect the starter fert with the crabgrass preventer may have halted some see germination along with a few very hot days that may have killed some seed. Is it worth trying to overseed again? I am afraid if I keep watering at night to get the new seed to germinate will cause some type of disease to the new grass.