Still - to me they have a certain something. Obviously don't grow them if your children or pets like to snack on the vegetation (but on the other hand, if we started excluding plants because they're poisonous we wouldn't have much to choose from, would we?)
This species used to be called Scopolia lurida and I think it's the original source of the pharmaceutical scopolamine. The plant overall resembles an aubergine plant and the flowers are about an inch across.
Hardy and easy in any reasonable soil in sun or part shade. Dies down to a hefty tuberous rootstock in winter.
3L pots ~ £7