Question
I live on Long Island. What is the correct height, in inches, that a lawn should be cut before the winter?

Answer
About 3 inches is ideal.  It's really not different than the healthy length for the growing season.  

For some reason, I hear that you're either supposed to mow it short or let it grow long, depend on who's talking.  Neither is correct.  Just keep it normal height.  

-C.J. Brown
www.TheLawnCoach.com