Ouch. The drought bites. Here is another casualty. Laurus nobilis, Bay Tree, Bay Laurel, True Laurel, etc. I have a larger tree from which I struck this cutting three years ago. It had developed a strong root system in the pot, but the heat and dry took its toll. This particular tree died several weeks ago, and we have used some of the dried up leaves already in cooking. Fresh bay leaves are fine for cooking, but you don't need as much, and the dried leaves appear to have a slightly different flavour. Perhaps some of the oils change or disappear?
The parent tree in the back garden is looking magnificent. More sheltered, more water, and it is well established.