>>1867430>Hmm, you guys still get hard frosts and temps in the in -10 - -20 C rangeWell actually, though 7b is technically my zone, my area in particular temperatures very rarely dip below the 20's F, even during the nights. Looking at the historical weather data for my specific area, the record low is -4 F, however the general average for all winter months here range from 29-33 degrees F.
Does that help your prognosis at all? Pic related.