Duchesse de Brabant in Zone 6b?
Have anyone grown Duchesse de Brabant in Zone 6b. Some sites say that DDB is hardy to Zone 7, while one site,davidgarden.com, seems to say that it can be grown in Zone 5.
On another note, if you have grown Madame Isaac Periece in NJ, could you share your insight/experience as well? In your opinion, do you find the plant/flower "graceful"? I know "Graceful" of course is an extremely subjective word, but it is best that I can come up with in terms of describing the quality that is most important to me for a rose.