Fort Worth, Tx here. Chard is the absolute best here. I have good king henry just barely hanging on, but maybe I could start it in the fall instead. It and tree collards are both perennial, both of which I have, neither of which are faring too well. I have poke growing rampant here, but there are controversial takes on its safety. I've never eaten it, but I did throw an absolute ton of the berries into the chicken run in the fall last year. Not sure if the chickens ate any, but none of them have died since that time, and several dozen seedlings popped up in the spring, which the chickens did eat voraciously. Muscadine leaves are perennial, and serve as some type of untraditional green, if you like. Arugula does really well here all winter and the slow bolt variety lasted until just a few weeks ago. In fact, I used it to thickly cover crop over a bunch of beds in the fall and some of it is still hanging on, though its 90% bolted. I also have amaranth, which I grow for the grain and the biomass. Never eaten the greens, but they are huge and not many pests. I had malarbar last year, and it is so incredibly prolific, and the berries are beautiful. I was too busy with trees this spring that I didn't get around to planting. I was also the only one that liked it. My wife thought it was gross.
