Hi Jon,
I'm not sure why Primal Scream showed a few streaks on that bloom. Couldn't resist taking the image with the three blooms and didn't even notice the streaks until later when viewing the photo. Color streaks or breaks can happen for various reasons....you might like reading these threads from the Daylily forum.
The thread "Do daylilies revert?" in
Daylilies forum
This thread has a bit more information....
The thread "Oddities" in
Daylilies forum
