Is there a proper time of the year to move sagos in the deep South? And do I need to cut the leaves before moving it?
Sago palms do not like to be disturbed so any transplanting needs to be done with great care. Mature palms can be transplanted in early spring or late fall. Be sure to relocate the plant in adequate growing conditions--full sun, well-draining soil, etc. Include as much of the root system as possible when digging up and moving it. You may also want to consider trimming the plant back to prevent transplant shock. Here is an article that you may find helpful: https://www.gardeningknowhow.com/plant-problems/environmental/learn-how-to-avoid-and-repair-transplant-shock-in-plants.htm