Well, I would cut the flowers off, along with about 1/4 of the foliage, to keep it from going into shock when you dig it up. And, as Bloomer and Bamboo said, better now than after hard frost damages it!

I cut a few off mine,that were in full bloom,but they were ready for going over,and also some of the old foliage.but I won't cut the rest back yet,as I still have lots of buds to come..I will enjoy the flowers as long as possible,sometimes well into winter..I'm lucky they are in a frost free Conservatory,with plenty of natural light and warmth from any sun we may have..It does seem a shame to dig them up,Nellie,but your neighbour can still enjoy them,and it's better than losing them..

thanks 'bloomer'

You're welcome,Nellie..I'm glad I did mine the other day,as they would have been a right mess after the strong gales overnight..