What a great thread to reboot, Nan!
Last year I kept a seedling as a "garden daylily". To me, it was plain but pretty. It had 10 fans, 4-5 made scapes, and was less than a year old post-germination! The scapes made many flowers through different weather conditions.
So, from a landscaping point of view it was a good garden daylily. Just there as a hard worker to fill a hole in my flowerbed to add a splash of color. Plopped it in a shady spot other daylilies have failed in.
But I had never considered what the words actually meant until you booted this thread to the top.
I will post a photo of it here just for reference: