I bought this Heuchera X 'Crown Jewel' last year for the garden. I was attracted to it's veined gray marbled leaves with maroon undersides. The plant tag recommended planting it in partial shade but I planted it in full sun where the colors seemed to darken.
On windy days the colors put on a display similar to that of a Can-Can Dancer. One moment you'd be looking at green leaves and the wind would pick up and the leaves would flutter and display their maroon underside. This spring I moved it to an area of the garden that is partial shade and the green in the leaves has pretty much vanished . I think I prefer this gray tint to the leaves because it looks like it is permanently covered in frost.
I didn't even bother photographing the flowers because they were white and pretty insignificant. My favorite thing about this perennial is the heart-shaped, lobed leaves. It is suppose to reach a height of 36" and attract Hummingbirds and Butterflies, though I have yet to see any signs of Butterflies in the garden visiting any of the Heucheras.