It seems Harkness stated that this rose was once blooming (see the 1985 reference indicating that the hybrids all "bloomed only in the summer,") which is precisely what you would expect from the stated parentage--there is no reason why it should be otherwise.
This rose may be extinct. Harkness has discarded this treasure from their nursery, and many people have been looking for this for quite some time without any results. It's so sad to know that Harkness would throw their own creation that is rare and beautiful.
