Jeanie ...
I am a lineage nut about roses and that's how I found the plants that would do well in this climate. I really needed heat tolerant roses ... lol.
When I fell in love with heucheras after I bought my first three plants, I did the same kind of research to find out what species were native in what areas so I could select plants based upon both how they look and their lineage. Palace Purple is definitely on my wish list.
The only reason the deer finally when after those plants is that I finally got the deer fencing right for the roses the previous owner of my home planted out in front of the house. Once they couldn't get to the roses, they went after everything else. The house pad and slope are deer safe, so that's why I keep moving things up here. I just don't have enough shade on this level. The front of the house has shade, but that's deer territory.
Smiles,
Lyn