My first seedling to bloom in May .... is a tie as I have 2:
ZZZ38 (Galaxy Explosion x Lily Munster). This is it's second year to bloom. I love the flower, but the scape height is still short. Bloom is 8 1/2", 1 branch with 9 buds, and a 13 1/4" tall scape. Absolutely no rust, thrip damage, or leaf streak on this plant. There is a rust bucket leaf that has been touching this plant for weeks. No rust! Yay! A very good attribute to possess.
Last year's bloom. (It had a 10" scape with a 6 1/2" bloom and NO rust last year either! It first bloomed on May 15, 2015):
So it appears to BE rust resistant, the scape has grown a little taller this year. And the bloom is quite large with curling petals! This was grown from seeds I got from Cindy (hemlady). I am happy how it is evolving from last year! I love it!
The second seedling (CCC03) is also having it's second year of blooms. The cross is Laughing Clown x Instant Graffiti from Daredevil Daylilies. This one has actually bloomed for the first time this season on 3/22/16. But it also had 2 blooms today. This one also is showing very good rust resistance. The foliage looks great! Taller scapes (27"). Blooms range from 6" - 6 1/2". 6 scapes currently on this small clump. 2 branches with 16 buds. The bloom is not fancy, but the plant foliage is so nice and the scapes taller than most of my seedlings, that I also really like this one. Need to cross it with ZZZ38!
Last year's bloom (5" bloom, 23" scape, and rust resistant last year, too!) Bloom size and scape height has increased this year. It bloomed it's first bloom on 3/30/15 last year.: