I have carefully watched and watered my new Hosta EVERY day. This morning I found heat scorch on the tip of one of my Diana Remembered.
This Hosta is receiving 4 hours sunlight between 11:30 am and 3:30 pm.
Too hot!!!
I immediately moved it to a shady location.
Lesson for Utah. "Sun tolerant Hosta" means it's sun tolerant in cooler, damp, misty regions like New Hampshire and Canada.
"Sun tolerant" does NOT mean UTAH. I believe there is no such thing as a sun tolerant Hosta in Utah.
The Utah dry sunlight is just too fierce. So far every Hosta I have NOT put in sprinkled sunlight or 2 hours morning sunlight only has been scorched.
I won't be trying that any more... even sun tolerant Hosta are shade plants.