What is my plant please

for about 12 months i have had a plant growing on and off
it's quite nice about 3-4ft high with a blue and white flower and long leaves
when it has flowered it then go'es into a ball fills up with lots of seeds see attached photo's
if anyone knows i would be grateful
many thanks ORAC60

 

Welcome ORAC60
Looks like Nicandra physalodes. Common name shoo fly.

http://www.google.co.uk/images?q=ni...&source=og&sa=N&hl=en&tab=wi&biw=1243&bih=528

http://en.wikipedia.org/wiki/Nicandra_physaloides

 

Re: many thanks

Hi silver surfer
thank you for your quick and quite right answer
it is indeed a Nicandra physalodes.
ORAC60