Yes. I've been impressed with mpst of mine.
I think youl could put a coleus in a pot and use some more moisture holding soild. Then plant the Heuchera in the main pot and use good draining soil. Then you could bury the Coleus pot in the larger container behind the Heuchera. That would work great and you could give the Coleus more water easily. I have tried this kind of stuff with other plants and it worked great.