I was wondering if this violet might be useful in breeding with hardier sweet violets since it's single; I'm sure interest in this subject has come up before, but I couldn't find any information. I've been guessing that Parmas might have the same chromosome number as V. odorata (2n=20) but their usual relative sterility would seem to be an obstacle. It would be lovely to have violets with Parma fragrance that don't require houseplant culture here. What do you think? Nathalie, if you're out there, has 'Feline' been a more reliable seed producer than other Parmas?