I don't know if this is the best way, but my mother has always buried them, pots and all out in the garden. After she gets them level with the surface, she mulches with leaves. Has worked very well for her, and she doesn't have to worry about them until spring.

I cut mine back in December the first year, and stuck it in a dry place and it lived but didn't thrive. This year I planted it and it's going great gangbusters, but that's probably not what you want to do. :)

Amy

I usually cut mine back around mid November.I take the fuschia out of the pot and remove as much soil as possible, cut the plant back to at most 6 inches. Then I put the roots into a small pot with soil and tuck it in a corner of my green house, I think the shed could be okay cause you can put them into very small pots., they then wouldn't take up much space.If you put them under the deck, maybe you should cover them with some mulch of some sort . I've heard of the burying idea also.I've been saving my fuschias for several years, every year they just look better,
Cindy

I store mine in a cool greenhouse but I have buried some in a raised bed and left them there until March. It works quite nicely as long as you bury them in a well drained area.

A......

Burying not possible. I do not have any "open" dirt area for that.

The greenhouse is full of tropicals and is being heated.

The garage and shed are also full. The garage is really a shop and DH uses it year' round. He even has a TV and it is heated and lighted.

Maybe I'll stick some under the deck and some in the camper. Those are the only dark areas I've got. The camper is tarped for winter. I'll have to try to remember to water them.

The ones I have in my green house don't mind the light. My green house has one small electric heater I have on frost watch. It is cool in there. Because it is cool and I only very sparingly water them they really seem to be pretty dormant in the winter. I start to water them more around the end of Feb. then they start to leaf out a bit. I think I've also heard of people removing the dirt from the roots, and cutting them back and storing them in paperbags in a cool place just like geraniums.
i also love fuschias and they're worth overwintering if you can,
Cindy

One more thought, One year I stored my Fuchsia baskets in a 4'x4' compost bin. Covered them with a piece of landscape fabric and covered them with the raked leaves, around the sides and over the top. I think I only lost one basket out of a dozen baskets doing it this way. The reason for the landscape cloth was for ease of checking the baskets to make sure they hadn't dried out completely.

A......

If you are going to put them in an unheated camper, put an electric fan in there with them. Otherwise, you might find they go mouldy.

I may have a different type of hanging fuchsia, but my pot has been left on the covered deck for the past 3 years and it's still doing well. It has a southern exposure and the only moisture it gets is what blows in on it from the rain. During our worst freezes I usually move it closer to the house wall.

I'm in the SW Portland area..........