I have never grown a heuchera in shade and all my hostas grow best in dappled shade or morning sun. I think both will tolerate shade but prefer sun.

I do have Palace Purple and many other purples in my front full sun iris garden with dayllilies, dianthus and echinecea among others. I also have a few hostas in fairly deep shade that barely emerge in the spring before the trees fill out.

IOW I agree with you. :)

Depends upon the intensity of the sun and moisture content of the soil here. I can't let heucheras have more than morning sun or they will toast. I don't grow hostas due to deer and lack of shade in my fenced area -- that is changing as my garden is maturing and I should have enough shade in another year (built from scratch in 2005).

In high shade beneath a crepe myrtle, I grow lambs ear, sedum, lavender, dusty miller, heuchera, salvia greggii, marigolds.

Cameron

I grow all my Heuchera in full sun here. They do great, but it's always a matter of where you are and circumstances. They would do fine in bright shade but I don't know about deep shade. someone else would have to answer that. Now with the intense weird heat year I of course have a few burned leaves here and there, but that's so on everything I have.
Cher