@Fgleber
I can't find the plant in any of the usual places, but is it possible I've tracked down the hybridizer or someone who knows the hybridizer? This link from a Foundation lists a Frank Gleber, who is the former owner of a Daylily Nursery. And according to the database, the hybridizer of Beatrice Blanche is "Gleber". Like all things on the internet, I can't guarantee this page isn't 30 years old, but it might be worth checking into if you want it badly enough. There's a link to contact him, if it isn't too old.
https://www.joanmitchellfounda...
