Just a little update, Thanks to your article Lynn, I found an insecticide that promises to do the trick and ordered some, even though I can't use it until September! And while grocery shopping today I happened to browse around the flower stand (occasionally they do plants as well) and found a half price pot of Campanular. I've never seen it there before! It's a little tired looking, but nothing that a new pot and a good drink wont cure. Now all I need is to find a long narrow container to sit on top of my steps and it'll soon grow down hide the ugly wall at the side of my bed
I think I'll go scouting around work tomorrow to see if anything fits the bill