It would be quite useful for me (and possibly others) for dormancy studies to know as many of the cultivar names as possible that have been grown in a location (usually southern) but that would not bloom in that location. Please only list cultivars that you have first-hand information about because that is the way they acted for you.
If you have grown daylily cultivars that grew leaves and were flowering size but never flowered in your growing conditions in the Southern portion of the U.S. (or anywhere that winter is very mild) could you please list their names.
If cultivars were mature size but only flowered in some years, usually not flowering in most years, please list those here as well.
Please also include cultivars that bloomed the first year after being planted but then never bloomed again.