Thanks Natalie and Glenie, for the info on bloom times. So, let me sum up..
1. "Tender" is a general term, based on plant hardiness, which is a general term, which is based on growing zone, which is a general term, so these terms are pretty much useless.
2. Covering or protecting plants is pretty much wasted effort because the unprotected plants catch up with them anyhow.
3. Bloom times also are pretty much useless as a guide.
4. Evergreen, Semi-evergreen, and dormant are not totally reliable and can't be counted on as a guide to hardiness.
So the data base is pretty much based on... is there something in there I can count on? I know looking at the pictures I often can't tell I am looking at the same plant.
So I have learned a lot here in this thread, daylilies cannot be counted on to behave properly!