Originally Posted by SpringfieldFan
I think that our yard with its various micro climates (light shade-dense shade to no shade with intense sun, high traffic-no traffic, flat to hilly) proves you correct, whenever I have not considered the differences this year I have received an expensive education that supports what you are telling me.
So if I overseed in September or October with a mix of good fescue, blue grass and perinial rye would it cover my learning mistakes by next spring?
That's a good thing to do every year, but I like to do it earlier. If you overseed when the daytime temperature is still reaching the low 80s, then it will germinate and have the entire fall to thrive. If you wait too long, it won't and then it's really no different than seeding in the spring. A lot of people seed late, but I think the best time to repair your lawn is at the end of summer, like late August when it's still warm but late enough that weeds are no longer germinating.
And I would recommend aerating. It will help create a better grow zone for your turf roots....and when your neighbors see you walking behind the aerator, they will be mighty impressed. You might even consider splitting an aerator with a neighbor, since you can rent for a half day, but it only takes an hour or two to aerate. Also helps with lugging the thing.
I aerate in the fall because the rains will have softened up the turf a little and make the process more effective.