Posted: 05/10/2013 at 23:21
Hello Rosie, did the flowers produce seeds? If so, you can plant them in the spring after soaking them for a couple of days in water and you will get new plants from them.
If not, then you are going to have to find a way of keeping the plant in a place that never freezes. It will need to be kept quite dry in a pot somewhere in the house. While it is in the pot you could try pinning one of the stems down into the compost and a new plant may take root from that.
Or, if you have a friend with a greenhouse, you could beg a space for your pot plant in there maybe, with the promise of an offshoot next spring.