I have been growing my plant (same one never been replaced) since 2012 and it never gets blackspot. I grow it in very tight quarters and sometimes the weeds will grow to surround it to the point where you cannot see it anymore - but when I clear out all the surrounding growth, I find it happy and still with absolutely no blackspot. It stays compact, remains bushy and well branched, and blooms well throughout the season. Whichever races of blackspot we have here in Iowa does not affect it.
Purchased this rose potted in a very nice size last spring. Over the course of the summer this "very black spot resistant" rose developed the malady in a location surrounded by roses that are supposedly more susceptible to the fungus, but none had it previously or developed it afterwards. Now I'm spraying it weekly with Rose Pride. However, when in full bloom it is gorgeous, and I am happy that I acquired it.
Again this rose is a winner! I can't believe how well it's grown and how intriguing the flowers are. Another non fussy, disease and pest resistant rose!
I found and planted this rose in 2009 in my zone 5 garden. It has had no special treatment except regular watering. It survived it's first winter just fine and bloomed beautifully. I'm looking forward to my next season with this little beauty.