Thornless Bonica offspring

Is it common for Bonica to produce thornless offspring? 3 of 4 seedlings are. Bonica x Sexy Rexy.

Side note is the pronunciation “Bon-a-ca” or “bo-ni-ca”?


I haven’t raised many Bonica seedlings. I have one that is near thornless and is a cross of Bonica x Blue Moon, so it seems Bonica may be a good parent to transmit the trait.


The second seedling I ever sprouted was from an open pollinated Bonica seed. I still have it. It is thornless and has blooms even more double than the parent, but is totally sterile. It only grows about a foot tall but covers itself in blooms every spring, with only occasional blooms after the first flush.