Well, looking in the database it says that Fulva is self-fertile
"If a daylily will self-pollinate, we then know it is both pod and pollen fertile and that it either lacks a self-incompatibility system or has a self-fertility gene present. Daylilies that are pod- and pollen-fertile but do not self-pollinate probably have a self-incompatibility gene system present. Problems with either pod or pollen fertility should be relatively evident from the results, although it may take time to find good test parents. These preliminary results may not be completely reliable but should give hybridizers an indication of potential fertility problems."
http://www.cascadebulbandseed....
Not exactly sure what that means, but to me it conflicts with being sterile. I read in a couple of places that it "seldom" produces viable seed.