Yea, I tried to grow my first fig inside. I did it for the first couple years of its existence and every winter it would loose its leaves and then start to put on vegetative growth immediately. The thing is that there isn't enough sunlight to do it any good during the winter months in the upper midwest. It would get real spindly because it was reaching for the light. The tree is now almost 11 years old and goes fully dormant through the winter months. Thats because I keep it below 45*F in my greenhouse over the winter. Your fig would be better off in an attached garage or basement. I've never heard of Dakota as a variety of fig, did you get it at a nursery?

Curious, Little John

My first fig tree was grown in the house also and it never had any figs till I found out it needs a rest period.