The variety is not registered. Nor is it listed in MyHostas.be.
The first link you sent said, "Southern growers in zones 10a and 10b are able to grow SunHosta year around, plants will bloom in April if planted in the fall. For the rest of the country we recommend the following schedule:"
Then it went on to say about buying them in the Autumn as well as in the Spring. Made me think that they are indeed marketing them as an annual - buy them twice a year to grow them throughout the year because hostas do indeed need a dormant period. I think its mostly a marketing stunt taking a variety that grows better in the sun than most. Nevertheless, I'd like to hear what happens to yours after a few years.
