For the reason behind this post see this thread:
The thread
The thread "Favourite Daylilies by USDA Hardiness Zone" in
Daylilies forum in the Daylilies Forum
Daylilies that have done well here in USDA Zone 9 and which I particularly like are:
Paper Butterfly
Fol de rol
Siloam Double Classic (hoping as a dormant that it does well here as this is a new addition to my garden)
Lavender Stardust (another registered as a dormant, so jury is out on how this does after it settles in!)
I have more, but all have been recently acquired, so will wait for a year to determine how they perform.
