For what it's worth, I have tried many different Heuchera but only two cultivars return reliably for me- "Caramel", and "Mocha" . I collected and planted some "Mocha" seeds and got some chartreuse, mid-green, and purplish progeny that also survive and thrive. Tiarellas that I grew from seed received in trade grow well too. I live just outside Birmingham, AL, in zone 8a.
Susan
