I have been making crosses and collecting pods for about 2 months now. And I am still making crosses currently with some of the reblooms. Earlier I had a problem with a rat or two who was looking for food at night in my yard and I guess didn't find any, so was eating some of my pods. I had to cut all those scape pods and put them in a vase of water to make sure no more were eaten or destroyed. I should probably do that again as I have a number of pods that are almost mature.
I use colored paper clips to mark the daylilies that I cross. I have a reference list of what color paper clip I used for which cross on a particular seedling or cultivar. Then when I harvest the seeds from any given pod, I can just flip through the list to figure out which one was the pollen parent. I have been doing that for years.
I have noticed that not all of my current crosses have taken. But many do, so I don't know if the weather affected those that didn't or if the bloom or pollen was sterile or if I crossed with the wrong ploidy. But so far, going into August, I am still crossing plants and seeing seed pods forming. I guess I have yet to see if seeds are produced from these current pods when they ripen.