easily propagated more though cuttings which probably would have been much faster but unfortunately I couldn't find what I wanted so I'll just improvise. Improvisation is always fun!
I've grown heuchera from seed before and it's pretty easy. I usually just sprinkle the very tiny seeds on the soil surface and water. Don't cover with soil. Then you wait. Keep them watered and wait some more. They could take a couple weeks to germinate. If they don't you wait some more! Heucheras don't come true to type (usually) but I really don't want them to. I'd would love to see the neatest heuchera ever developed grown in my backyard - wouldn't you? ;) There's no germination yet so I'm waiting and checking daily in anticipation!
Have you grown any of these plants from seed before?