I tried a search for Sunfast daylilies, an did not have much luck. Then I was looking a this site,
http://www.sandysplants.com/in... it said that daylilies that are color fast on hot humid days are called "heat and humidity tolerant" at least on their site. So I selected "all" did control+ "F" typed in "heat" and brought up all the ones that were listed as "heat and humidity tolerant". I am going to try searches like that more often on sites. I would personally love it if vendors would all list "rust resistant" and "heat and humidity tolerant" , and other similar traits, would make finding choices much easier.
Edited to add the site.
