proletariatcsp

Agreed with Nanaman, Little cavandish are troopers in the cold, but like most bananas, they are not "cool" tolerant.

My bananas will not lose leaves if overnight temps hit 30's. But if the temps stay in the 40's for days on end, the leaves die. Winter 2010 I didn't lose any leaves and we had several nights below freezing. Winter 2011, we had no hard freezing but all my leaves on all my nanners died.

Your nana is not getting too much sun, and I don't think it did at the greehouse because there are no "red mottled spots" which is a common trait of younger sun-exposed leaves. Either way the plant should outgrow most problems once it adjusts to its new environment.

Good luck with your nanna.