Kelby, moderator of ourfigs.com:

Florea is among the hardiest varieties known, surviving temperatures as low as -4F in NJ. Introduced by fig guru herman2, it was brought to America from Serbia where it was grown in his father's garden. In Serbia it reportedly survived temperatures of -13F. In addition to it's hardiness, it is also the earliest to ripen it's main crop most years, usually in late July or early August. It is a sweet fig with a good but not extraordinary taste. It does not do well with rain or cloudy/cool weather.

It may be same variety as Mitchurinska10 per xenil/Kristian on f4f. Mitchurinska10 shares many common traits with Florea, and is common in Bulgaria and other Eastern European countries. Bulgarian agricultural authorities report this variety can survive -13F with little to no damage, but this depends on branch thickness.