I've grown them a few times, though they never produced anything much. Funnily enough I'd bought some recently and was going to pot them up.
Found it was best to get them started somewhere nice and warm, propagator or airing cupboard works for me and then grew them on in the greenhouse or poly-tunnel. They make nice looking plants and I expect they would be fine outside somewhere nice and sheltered during the summer months. They need somewhere inside to overwinter them. Let us know how you get on, I'll be planting mine up in a few days, when I get the chance.