Because you haven't had any responses, I thought I'd try to look up your plant in my weed book (Weeds of the Northern U.S. and Canada). Because you're in Georgia, maybe this is a species that wouldn't be covered but here are a couple of GUESSES:
small snap dragon? blue-eyed mary?

Have the plants flowered since you took the pictures? It looks like maybe there are some pinkish buds in the pictures but I can't be sure.

Does it have a sticky feel to it? Your plant reminded me of something but I couldn't put my finger on it, today I found the Cuphea viscosissima, Blue Waxweed has germinated and it took my forever to recall the name! You could also compare it to Three-Seeded Mercury, Acalypha virginica.

Here is a link that might be useful: Google image results for Cuphea viscosissima