By Problem
United Kingdom 
I have a plant come up no idea what it is it has a mauve flower which turns into like a lantern . the stem is half green and have dark red, sorry no photo
10 Aug, 2011
Answers
Shoofly? (spelling?)
10 Aug, 2011
They are the same, aren't they? That is what I think it is as well.
10 Aug, 2011
They are the same plant Bulba :-)
10 Aug, 2011
Without a photo we're fishing blindfold, but google pics of Nicandra physalodes and see if that's what you've got.
10 Aug, 2011