Various means can be used to protect fig trees for the winter. It appears that what is important is to keep the tree reasonably dry, and above about 10 F. Plastic sheeting and insulating materials such as dry leaves can be used to accomplish this. The amount of protection required depends on the severity of the climate. A very satisfactory approach to protecting a fig tree is to grow it, preferably planted in the ground, in a simple greenhouse. A greenhouse provides the considerable additional advantage of lengthening the ripening season for the fruit.
Fig trees can also grow and fruit quite well when grown in containers.
Fig trees tend to fruit best when the soil is on the lean, dry, side so that their vigor is restrained somewhat. Allowing the trees to become somewhat rootbound in containers will accomplish the same purpose. A fig tree which makes excessively vigorous growth is likely to produce little or no fruit. Should be adaptable to container or greenhouse culture. Does well in containers or greenhouse.