I figured out you looked up where I lived from my info <----------------- over there.
I think it would be so much work to plant a tree, then have to dig it up in te fall to bring in. but, if I were to ever purchase a house, I may try getting something more cold hardy and plant year yound and build a structure for around it during the winter. If we ever get a summer. damn rain... it'd drown any citru that is outside!
Guess it just seems more unlikly here to be able to better grow citrus than places in the states. but, our weather keeps getting more and more mild, which is such a bad thing!