Every where you search online, Daylilies are listed as toxic to cats.
I am just including this link to the American Hemerocallis Society:
https://www.daylilynetwork.org...
I have about 150 daylilies in my backyard. My cats have always gone outside supervised and none have ever gotten sick. I have seen them playing with the leaves, biting them and playing with used scapes.
I used to be in my Local Daylily Society and they have always told us it is a Myth.
Sandy