Shortly after the L.A. Times article came out, I was able to obtain a sapote tree at OSH for $35. Quite amazing since I had never seen one before. I kept it under a tarp during the hottest weather and now that the weather has cooled off somewhat it is fully exposed. Since it is not a very cold tolerant plant, I made it a south facing “fortress” out of paving blocks in the hopes that they will help retain heat during the cold months.
I had hoped to buy the tree in the spring so it would have months to get established. Sadly, it looks like many of the leaves are yellowing and browning at this point but perhaps they will perk up in time. The great thing about having bought the tree at OSH is that they have a lifetime plant warranty so if the tree dies, I can get a replacement (probably a loquat).