Sorry, Deb, I couldn't find that out online.
Funny how people who want to sell us things splatter their website with photos and verbiage and inflated claims ... but INFORMATION about what they are selling? In very short supply.
If they told us anything useful, we might save our own seeds.
I see :
" Genus: Salvia, Species: x superba "
and:
"Hybrid sage (Salvia × superba)"
and
"This hybrid of S. nemorosa and S. sylvestris"
and
"Synonyms: S. nemerosa 'Superba' "
So your guess is as good as mine.
My guess is that something was hybridized with something rather dissimilar some decades ago, and has been somewhat stabilized since then. I'm GUESSING that they no longer produce commercial seed by crossing two different Salvia species, but they might have some proprietary strains that are good for producing relatively "true" or at least predictable F1 seeds.
But I'm just guessing. If you plant them, something will probably grow. Probably blue. But how close to the parents? I would love to know, especially since all the vendors are so coy about the single most basic, most important fact about a seed: will it come true?
I guess that is less important to vendors than : "Will they buy from me again if I keep them as ignorant as I possibly can?"
