I split this thread off from the Series thread on Don Herr so that this could get proper answers.
Shows have nothing to do with registering a daylily. However, the daylily does need to be registered to be shown.
Here is the link on the AHS site for registration. I wish I had time to give you a better answer, but I need to get some things done. I'll be back later to see if anyone else has chimed in yet. I have not registered any myself so I am not 100% sure on the process.
http://www.daylilies.org/AHSre...