Yes, Mrs Popple is classed as a hardy type though it may die back to the base in colder winters, shooting from here again in spring rather than higher up the stems. This isn't a problem normally as once they have a large rootball, they produce vigorous re-growth and flower on new shoots anyway.

I've seen them flower at Christmas, very tough and so popular, the best usually are.

Mrs Popple is one of the toughest - I've been growing it for many years and it has come through every winter so far

Yes, I have as well. It's very reliable. I leave the dead top growth on until I see new shoots appearing from the base.

I've only just seen your question - they're all right, it is very hardy - but not in a pot. All fuchsias are susceptible to frost via their roots, so in a pot, they're not so hardy.