About 8 years ago, I planted a lot of trees in the ground. Fig are their happiest if they don't suffer from a long long winter freeze. I'm in zone 8a and I use to doubt it until this past year and comparing temps around Charlotte. So, far this year, we've had 20 degree weather twice including today. However I agree with Steve on KB. It's a great tasting fig but it is very temperamental and will skip fruiting if pissed off by too much cold weather. Improved Celeste rocks well in my climate and so does Hardy Chicago, Don Fortis, Florea, King Arthur (no its not the same as Desert King, Italian Black, Desert King, Celeste, Brown Turkey and a few others unknowns. I had over 60 trees in the ground years ago. All do extremely well when winterized. But it takes a lot of time to bag 60+ trees with leaves and burlap so I stopped. Two years ago, I dug up my oldest Smith tree and placed it in a large self watering pot. Today, it is one of my best producers of figs. Smith is NOT cold hardy at all. Black Jack is another tree that is NOT hardy!
Bass, I like your Brooklyn White. I have 2 trees and may place one in the ground next week.