When I received my daylily seeds last year, I looked on the internet to see how to grow them. Unfortunately, all I could find were one or two webpages from the USA. So, I felt already that the advice might not be appropriate to conditions in my part of the U.K.
Now, there may be other reasons why only one daylily seed (out of six) germinated last summer/autumn and there might be information in book form which could have confirmed what to do here. However, from my experience, it would seem that the best time to sow daylily seeds (in pots indoors) is in the spring.
The one seedling from last year seems to be dying, but this week two new shoots have appeared to join the one I reported on the other week. Hopefully, that means there will be a show of flowers later in the year – and I might even eat one to see what they taste like!