I've been diagnosing my backyard because it's not popping like my neighbors' and I believe I have hard, compacted soil. I had construction work last year on the house, which required heavy equipment and lots of foot traffic. When I raked the last few days, I raked up clouds of dirt, and the backyard is all bumpy - not new, it's always been like that since purchasing 3 years ago. Last year, I did core aeration i the spring, and liquid aeration in the fall because I sodded 1/3 of the yard and they didn't want to core aerate until the roots have planted; overseeded both seasons too.
Anyway, this spring, there are a ton of weeds and thin grass, plus high and low spots of spotty grass growth. So the plan is to core aerate, overseed and then start laying down topsoil to see if that helps give the grass more of a chance; I haven't gotten a quote to topsoil the whole yard, but was scared off by internet quotes so will lay down a few bags at a time.
I'm curious how often I should core aerate to break up the compacted soil. More than once in the spring and fall?