It does well growing in pot culture. In my zone, we have sporadic winter temp. of up to -8*C for up to 6 days in a stretch. Windchills can be -15*C in the nights. Lots depends on the artic outflows. My tree is grown outside & this winter we did see temp. going to -9*C. So far only slight damage to tips. I have 2 other LdA trees grown in pot(for friend), left outside with dirt protection up to mid way of pot & I did not see any damage apart from its tips.
Like Axier said, it is a quality variant. The breba ripens in Aug and main crop mostly around mid Oct. I think my friend had his tree in the greenhouse & it ripens earlier. Main crop is awesome tasting.