Two ways you can find the Daylily Forum -- and yes, you are on the forum that was moved from cubits - so technically you are here --
Once you are at All Things Plants ( or ATP for short) for your other gardening groups, go up to the top and click the "Forums" tab. That will take you to a list of all the discussion forums here at ATP. Scroll down a ways, and you will come to the section for different types of plants, and you will find the Daylily forum there. Once there, you can click on the right side, the "Watch this Forum" to join the forum. Then the daylily forum will show up in your list of forums.
Also, did you know that you can click on the ATP logo at the top of the page and it will take you to your "home" page, where the threads you have watched, as well as the forums you are watching show up at the top of the page? That works at Cubits also.
I hope I answered your question. If not - or if you have any others, ask away!
Juli