I rescued a fuchsia from a friend, it was very tiny to start, but has now has developed and I have planted in the garden. I wondered during winter if it will be hardy enough to stand the cold/frost and if not what is the best thing to do.
You won't know until you find out what variety it is. Some are hardy and will over-winter, some won't. I have some in pots which I overwinter in my unheated garage. To be safe, take it out of the ground in autumn, pot it up, water well, then leave it alone for the winter somewhere frost free. New growth should appear in Feb / March.