I own this cute rose. Its a very, very dwarf rugosa with dwarf foliage and small blooms in clusters. It makes a 2.5' tall, slowly widening ball (it has short runners) of rugosa cuteness that blooms once in early June. The colors are feminine yet rustic. The hips are probably the most painful in existence. The wither off entirely to nothingness by August. This rose is extremely xeriscape friendly. I water mine but I doubt it needs it. Ive never pruned it. There is no point. I like in ORegon so I am not certain of how it would behave in extreme climates of cold or heat since each parent is either polar/coastal or arid/desert in origin (ie. opposing climates).
I have seen it produce tiny spiny hips, with nothing inside them. A mature plant produces about 10 of these a year, and its always the same result. I imagine that maybe it could set seed in a desert climate, where it does not rain in the spring season.
Ech... From what you said it sounds like it is darn close MY kind of rose, sans repeat. Maybe if the rose was remade, and hope for a fertile one, or a different rugosa? It would be nice tohave, but I would waste years on it lol :P
I know, They can be real sob sometimes. But it is worth it- they are really one of the few truly healthy and happy roses here, especially if the beach floods again.