It looks a bit like a cross between a salvia and a foxglove. Like foxgloves, it grows 3-6′ tall, attracts bees and hummingbirds, and gently reseeds itself to spread gracefully around the garden. At Montrose, it grew in the pathways.
The front of the blossom looks very much like that of a foxglove. (Unfortunately, I couldn’t photograph the flower’s face without stepping in the borders.) I imagine it looking most attractive in the company of Salvia leucantha, Papaver ‘Lauren’s Grape’ and Callirhoe involucrata.
I think I must get the rest of my cyclamen sown, and quickly.