Heuchera sanguinea
We’ve had coral bells (Heuchera sanguinea) growing in our garden and in containers pretty much since we have been able to have a garden. It’s not the sturdiest of plants and we’ve had to replace them from time to time. I may be forgetting something but I think this is currently our only plant, growing in a container in the driveway. It’s fairly happy, probably because the containers get watered more regularly throughout the summer than the in-ground plantings. Also, although this gets a bit of direct morning sun, it’s in bright, open shade by early afternoon so it doesn’t bake. It seems to be happy and it blooms quite freely, which is nice.