The Internet's Finest Tropical Fruit Discussion Forum!"All discussion content within the forum reflects the views of the individual participants and does not necessarily represent the views held by the Tropical Fruit Forum as an organization."
my guess is the same as yours...fall after it is completely dormant...that seems to be when most tree nurseries move their trees and you'd have to think they somewhat know what they are doing In my experience, Some are very sensitive(like a Avocado tree). Fig trees does not have sensitive root system. I think you can move anytime as long as you be careful. But be careful, Fig tree don't like chemical Fertilizer when the root system is weak.