hobby-scale grains in GA

I live just south of Atlanta, GA. I have Cecil sandy clay loam. Most of the yard is shaded by trees, but there's enough sun for centipede grass and most vegetables/flowers. Last year some utility workers dug a hole to work on something and then sowed some kind of grain -- this was some time during the fall or winter, and I didn't pay attention to how deep they planted the grains. It grew very well, with no weeds (picture below), and I was able to harvest it and make some sprouted wheat bread.

I'd like to dig up a few square meters of the lawn and plant what I have saved, since the regular wheat I planted that same year did very poorly. So my questions are: 1. What kind of grain is in the picture? 2. How deep should I plant it, and when? (I guess I could experiment with this) 3. Would it work to plant some red/white/yellow clover along with the wheat to make it pretty and fix nitrogen? 4. Could I grow a different grain in the summer like Fukuoka does with rice/barley? I don't think this grain likes hot weather.

I haven't seen the picture, but when they workded on the ditches near my house here in Ga, they seeded it with what looked like wheat.

Down here I would suggest corn/rice for the summer. Rice is a bit tricky, especially if you can't get wild/heirloom rice seed. Corn is easier.

Most things you plant may do better either on hugelkultur and/or in partial shade. I shouldn't have to tell you how brutal the heat and humidity can get.

Sorry, here's the picture.

Can't figure out how to embed from Picasa. Here's the picture.

It looks like triticale though I'd google triticale, rye and wheat and compare if I were you.