Try alyceclover and jointvetch. I've been planting it for about 5-6 yrs now and it does really well in the shade. And in the heat and drought. Not sure what type soil you have but it loves my red clay. It takes some spraying to keep weeds out but the deer love it. I've planted a lot of things to see what does best during the summer and this mix is at the top of my list for plots not large enough to support any type of peas or beans in lower Alabama.