Hi Vasile,
Many people seek the rare and exotic fig variants and they overlook some of excellent varieties such as, LSU Blk, O'Rourke and etc that are fairly easy to obtain. Last season was the first time that my LSU Blk plant produced, and they were excellent, much better than Noire de Caromb and few exotic variants that I am growing.
As you stated, it sounds like this variant is cold hardy. Did you cover your plant past winter (assuming it's planted in-ground)?
PHD,
Yes. I also have a LSU Purple plant as well. It's a heavy producer (older plant), but its figs taste mediocre and might get rid of it latter this season. It grows and produces fine up north (WV) where the plant is. You must take into the account that LSU Purple needs a few years to begin start producing good tasting figs. Its figs will taste better as the plant ages. Not the case with my plant!
Navid.