I live in roswell, ga and it has been very warm this spring and has rained a good bit. Well my fescue grass has grown very well and I cut it once a week. Well, temperatures over the next couple of days are going to get down to freezing at night. I am very busy during the week and cant mow so I like to do my yardwork on the weekends. Will it hurt that I mow my grass today with temperatures falling? My grass is reall long right now.. Or does the length of the grass help to insulate it?