The most vigorous variety in my garden is 'Caramel' which is villosa. 'Midnight Rose' is doing well, but does not grow/multiply too fast. 'Stormy Seas' was planted last fall and looks fantastic so far. Some light colored yellow/lime green varieties are the weakest (do not remember names now).
All Heucheras have to be divided and/or planted deeper from time to time.

I do not have individual Heuchera pictures, but you can see two large 'Caramel' specimens on the right side on this picture:

Thanks. I'll keep those varieties in mind.

Totally Confused

Palace Purple, and old variety, has done well for me here for years. I think it's americana, so the rules may not be set in stone.

Purple Palace is the only one I can grow with any reliability. I have tried the gold-hued varieties and they always die. But that's just me. It will depend on conditions. The other good thing about Purple Palace is that it is dirt cheap.

Jen

Purple Palace, Amethyst Mist, Peach Melba, and Key Lime Pie have all grown well in VA soil for me.

-David