Rosa Sally Holmes
This is just one stem – seems impossible that so many flowers can be produced as one flower head and be so large. This rose was planted as a small cutting just over two years ago; it is already approaching 1.8 metres high with a spread of about the same.
This rose is stunning- looks as if it would fall over with the weight of its flowers. Not available here, I think
It was hybridised in the UK but as you say is not often available as it really only does well in hot conditions; it is a rose that almost everyone has here because it is so easy.