This shrub is about 7 ft. tall and it dies back in the fall. The stalks are bamboo like and the flowers have a musty smell. http://img.photobucket.com/albums/v317/Buckyg/Kathysshrub001.jpg http://img.photobucket.com/albums/v317/Buckyg/KathysShrub003.jpg http://img.photobucket.com/albums/v317/Buckyg/9db12c52.jpg
One of the knotweeds related to Japanese Knotweed. Potentially invasive, though yours seems to be fairly well-behaved (not spreading widely)
That's what I was told, but I couldn't believe it because I bought it from a garden centre. They have since gone out of business, probaly for selling weeds. LOL Thanks for your reply.