Can anyone identify this plant? We were given a cutting when we moved into our house eleven years ago. It flowers mid-to-late August and is obviously hardy perrennial.
The lady who gave it to us said that she had got a cutting from a friend in Canada - so do any of you Canadian Bloggers know what it's called? We've never seen it anywhere else on our travels in the UK.
Any suggestions, names, natural habitat etc. greatly appreciated.
"…Watch with glittering eyes the whole world around you because the greatest secrets are always hidden in the most unlikely places. Those who do not believe in magic will never find it." (The last published words of Roald Dahl.)