I have a 4-5 ft tall aloe barberae that I planted on a hill about 2.5 months ago that has started yellowing in the past month and is looking pretty bad. I water 3 times per week. It gets sun the entire day and is inland in southern California. It might be worth noting that there used to be a large apple tree here. We have gopher problems that killed a lot of our plants but I wrapped the roots entirely with 1/4" mesh. I think the problem might be over watering. Thank you for your suggestions!
That looks like an aloe to me. It looks stressed. It could be water stress (3x a week seems like a lot to me). It could be sun or something else. The good news is that the center part is still green and healthy looking.
Cut back on the water to once a week or less as we head into fall.
I don't think the wire is going to bother anything, but you should probably google aloe and zinc to see if there are any interactions.