There are some hardy ones but they are usually small single flowers, mine has been in the garden well over 25years,

Hi Pam. It depends on the area you live. I live in Devon and I have several in the garden that are not all hardy ones. If you plant them deep enough some should survive ok, cut them back in the early winter and cover them with a thick layer of peat,and then watch out for new shoots next season by scraping away (very carefully) some of the peat.

I've managed to keep mine through the winter in hanging baskets by putting them by a wall to shelter them.

It was those two years of really bad frosts that did for the pretty ones but the old hedging one...is it Mrs Popple?....always comes back if only from the base

I have both types and the hardy ones die right back and new shoots appear in march or april, they seems to survive these hard frosts very well.
The non hardy I keep in pots and hide them away in my little growhouse within the garage.

If you know the names of them let us know and we can then tell if they are hardy ones. Even the hardy ones need to be planted in the ground, and about four inches deeper than where the roots join the stems. If they have to stay in pots they need keeping pretty well completely dry and in a frost free place. You can then bring them into the warm in early spring, cut them well back and spray the stems that are left with water to help them start off again.
You have a good chance of keeping the tender ones this way too - worth a try. An unheated bedroom or conservatory is fine.