I did a search on this website for bluest daylily and this thread comes up. So many interesting info on here. I am also looking to find the bluest daylily to grow in my garden. All of what I have is either purple or lavender purple, not blue. Bought a few seeds on LA that have parents with blue color and hope for the best a few years from now.
@professora, I have a nice white dip that is very fertile if you are still looking for a white daylily to do some blue hybridizing. Please send treemail, if interested.
Forsyth Summer Snow
It is white but not as white as Gentle Shepherd. Gentle Shepherd is not a vigorous grower for me so I don't have many fans to share.
Gentle Shepherd for comparison