How far in the year can u Aerate? I was thinking that unless the ground is frozen that it would work, but would it still be ok, like up 'til Thanksgiving, or even later providing it's not frozen ground? Wouldn't the ground still benifit? Or would it be better to just wait 'til spring at this point? In Indy now it's dropped in the last week from like 75 highs to now 60 highs! It's looking like the season is ( for the most $ part ) over. I'm looking for other ways to bring in some cash. So what should the temps be for aeration to be worthwhile for customers?