By Sula
Dumfriesshire,
United Kingdom 
Checked out strobilanthes on the net and it's definitely not that.
This is a tall, spindly plant with silvery greyish green leaves mainly on the bottom and vivid mauvish flowers mainly at the tip of the stem.
7 Aug, 2010
Lychnis coronaria? If its not that, we really do need a photograph.
7 Aug, 2010