@HeckYes,
to the forum.
I have some years when some blooms look outstanding and the colors just pop. Other years those blooms don't look so nice but other plants in the garden produce outstanding blooms. So even here the colors are not always consistent with all the daylilies, but I don't recall having a year when all the colors seemed to shift. So I have no answer for you. Maybe it is just the cooler weather as Jill suggested.
