Spigelia marilandica. A beautiful native.

Yup, flora_uk is correct. I bought a couple of them last year, seem to be kind of slow growing. I actually got a piece of it to take root, but I just planted the cutting with the smaller of the two plants to fill it out. I can't wait for mine to mature. Supposed to be attractive to hummingbirds.

Karen

Often called Indian pink - Somewhat rare, from what I gather. Definitely a native that should be planted more!

Thanks to you all who posted! Mystery solved! I feel honored to have stumbled across a community of these plants.