Just a slight update....
So far, the recent weather has been just as bad as last winter's, even though December was not as bad as it was last year. The deep freeze has started again here in The Bronx, NYC, and once again, the possibility of fig trees being severely damaged are very real. Containerized trees are at the greatest risk. Any trees stored in temps. between 35* and 45* F will probably do just fine, and will live to sprout yet another day.
My "Black Mission" that survived last year's winter, lived on, only to display a very bad case of FMV/D...and thepurchased replacement "BM" was just as badly infected. Both were thrown in the garbage, where they belonged. The tissue-cultured "Olympian" -Wellspring Gardens, grew rampantly, had no disease, and pushed figs, which were nipped off. In addition to the "Olympian", I was able to get a few replacement unknowns, from local sources. All the trees are resting in my unheated shed, and the jury is still out as to their survival.
If the current weather patterns are any indication of what can be expected in the future winters, it will be very difficult to keep grounded trees from being killed back in the colder climate zones. Bronx winters were not as severely cold as the last winters, and I never had to contend with so much cold damage. From my direct observation, many of the older, established, grounded fig trees growing in The Bronx, DID NOT survive from The Winter of 2013-2014. Many re-sprouted, but just as many died. Not a good sign.
So once again, I will wait out the remainder of this winter with crossed fingers.
Good luck.
Frank