It's not common, and there's only one place we know of to see it, and that's Newell's Run, not very far as the pileated woodpecker flies from our place. It needs very rich, loamy slopes and dappled sun.
You begin to see the effect of a lot of Mary growing together.
Step back, and see a whole woodland full of it, and you have to rub your eyes...am I really seeing that blue in the understory? Well, that really intense blue is a tarp there in front of the huntin' dog house. But the rest is hundreds of thousands, maybe millions of tiny blue and white flowers.