Well,
after I went ahead and ordered this plant, I bothered to read the reviews (on the Oakes website).
One person in N. CA had this to say:
" Interestingly, it starts blooming very late in the day – like 5 pm, is fully bloomed by dark, and the bloom is fading by morning.
That suggests to me that maybe (even though it is not registered as such) it is a
nocturnal daylily. (That would explain why the flowers do not seem fully open on some of the images.)
Not exactly what I wanted.
Has anyone noticed similar behavior?