I don't really do this on purpose. It just happens because I have so many roses packed into my garden. I think the most successful pairing has been Scorcher and Colette. Scorcher's in heavy bloom during periods when Colette is resting. You can see them "merging" in this photo.
The great big thing behind them is a climbing Cecile Brunner. It isn't as close to them as it looks in the photo. so it's not part of the "merge."
