probably cold damage ... and i bet.. it was still furled .. in that all the affected parts.. were the exposed edges ...

ken

We haven’t had frosts - just cooler and wetter than usual. That’s why this seemed like a reasonable explanation. http://www.hostalists.org/hosta_list_sprdes.php

Yes, have good amount of similar damage. I wonder why some got it and not others?

my understanding is that some varieties are more susceptible than others. my emerald ruff cut looks like crap from it. lol

Thanks for researching this. I was wondering what those brown places on some leaves were from.