I posted a comment re: 'Join the Party' last year, so I will quote that here...
" 'Join the Party' (Hanson, C 2009) seems to have either fallen out of favour or just never quite caught on, and in either case, that's unfortunate as I believe this daylily is undervalued.
With 6-inch blooms on 33-inch scapes, it begins late in the season (here in the north) but blooms reliably and with no special fuss or care each year. The petals have a light ruflle, it boasts a distinctive white midrib, and has a sculpted / pleated texture etched out of the throat onto the petals. And this is a true red (not an orange-red or a pink-red) which flags your attention from across the garden.
Yet, when I do a 'google' search for it, the only listing I find for it is here, in the NGA database. I think a lot of folks missed the boat on this one."
I would note, when it says that it blooms in late season, it does mean late. For me, it starts blooming in mid to later August and flowers well into September ... one of the few that rivals Moussaka for 'end of the season daylily' (though Moussaka has flowered into mid-October).
Steadfast, reliable and distinctive, 'Join the Party' has earned its place in the gardens. I would recommend to any northern gardeners (and suggest it to those farther south), or to anyone who may want to hybridize with sculpted daylilies, as it sets pods very well (don't think I have ever tried the pollen).