Posted: 01/09/2015 at 10:56
I think you're right Jo. I'd have it outside in all but the hardest weather - as long as the potting medium is gritty and free-draining, and it's not watered in the winter they're fine outside in a sheltered spot.
They can cope with cold as long as their roots are not wet.
I would bubble-wrap the pot for the winter.