Citrus Trees in the Winter. The winter of 2009 was one of the worst on record here in Florida. Our Citrus crop took a real hard hit from the low temperatures that seemed to be never ending. Now is the time to have our Arborist take a look at your trees and go over all of the proper steps you should take to ensure a healthy crop of fruit next year. It's easier than you might think and all it takes is one phone call.