Posted: 28/03/2015 at 14:16
I've never heard of putting the bubble wrap inside the pot, only outside so that it's removable in summer.
I expect the uprooting was a shock, did you keep as much earth on the roots as possible during the process?
It sounds as though you've allowed for enough drainage, but I wonder why it drains so slowly, I hope it's not too wet and soggy inside the pot.
My daughter, who lives south of Poitiers in France, has an olive tree in a pot on her terrace. It can get pretty cold in winter where she is but the tree has been fine so far.