Sue - Yes, that it what I really think happened with this particular seedling. Unfortunately, it is the pink blooming seedling in my avatar.
Sometimes, your best efforts just don't work out.....
I keep going back over this thread and re-reading all the cultivar suggestions that everyone posted. Thank you to each of you for your lists .... however large or small.
The dormancy issue has always confused me. Since I have high summer heat here (for many, many months) .... if dormancy is more about heat dormancy ... then I can certainly believe that. And if heat stress is more likely to reduce or even kill some cultivars .... then it will truly be trial and error in my gardens. It will be interesting to see which cultivars tough it out and do well. I have been very fortunate to receive cultivars for free or very cheap, so I'm lucky in that respect. For me, that is one of the reasons that I do NOT seek to purchase expensive daylilies. It becomes a waste of money very quickly otherwise.
Something else that I am wondering about ... do cultivars survive better if there is a clump vs. a single or even double fan? Or does it not make any difference the number of fans of the cultivar if heat stress is a factor.
I will say the cultivars in the raised bed that I pictured in a previous post on this thread are really producing some nice foliage. I am also seeing rust on a few of them. Some were bonus plants and their rust resistance is unknown. (I may know soon which ones have the resistance and which don't.)
The one thing I've yet to see is a large clump of a cultivar or seedling. A few of my seedlings may produce a nice clump this year. I hope so! I often think that a clump vs. just a couple of fans is much more likely to survive the summer heat. But that may not be true.