Greenhouse shrub to keep whitefly at bay ?

[Rob G]

I visited a friend in Skye last week and she has such a shrub in her polytunnel.

It was about 4 ft high, open growth, with curious shaped purple flowers. I didn't look at it all that closely to try and get an idea of what it is. I got some seeds that remind me very much of cape gooseberries.

Any one any ideas of what it is?

Rob

[veggiechicken]

Shoo fly? Pretty purple flowers - forms a round seed case full of seeds. I have some in the garden
Nicandra physaloides Seeds £1.22 from Chiltern Seeds - Chiltern Seeds secure online shop

[dandalady]

hence the name shoofly?? worth a try