By Margsfamily
United Kingdom 
can you please tell me what this plant is it grew at the rate of a sunflower leaves simular but with jagged edge it has trumpet flowers they are mauve with white centre not unlike the vine weed. i didnot plant it. many thanks
Margaret
23 Sep, 2013
Answers
Bamboo is right as usual! Common name, shoo-fly plant; lovely seed cases.
23 Sep, 2013
Thanks Bamboo & Sheilabub for your quick responses and for saving me hours of trawling through gardening books and internet pages. I've already recommended this site to our neighbour. Thanks again.
24 Sep, 2013
Nicandra physalodes. They do have a tendency to pop up unexpected, though I've never found one, much to my disappointment.
23 Sep, 2013