Let's look at "K" hostas today. I have several and I bet you have even more.
The first is the name of my elder daughter, 'Karin', and shows why you should check hostas out before buying them by name. I don't really like this one and with the wet spring we had, it developed some drawstring. 'Karin' was new spring 2006 and has had a few divisions taken from it. It is fertile, but so far any seedlings have been unremarkable. This photo was taken June 28.