Plant identification: do you know what this is?
This plant is about 2-3 ft. wide and tall and starting growing in my backyard in Georgia, zone 7, USA this summer. It looks edible but I'd like to know for sure what it is before I try eating some. I may have planted it myself since I took some old seeds of a wide variety and just threw them around in a bare area of my yard. On the other hand, I had some nice surprises as well as some weeds with the process.