For the past five or so yrs I have been lugging large pots with figs in them into our sunroom for Winter. In Spring, I'd bury the pots up to the rim in good soil. The roots would grow out of the drainage holes in the pots into the soil. Next Fall, the roots got cut off and the pot again brought in. We got only a very few to some ripe figs each year. The figs and pots keep getting larger so this year (2014) the figs were planted in a hoop house and did well. For Winter, I bent them down, bundled (tied) the branches together then covered the each entire tree with straw and covered everything with
compost. I'd have used only compost but didn't have that much. The compost will be spread around the hoop house in Spring when the figs are uncovered. Last Winter (2013-14) was really cold here in SW Ohio and the figs will now be ready for a repeat. I hope.