All the dryness indicators are off the charts here. We got half an inch of rain in May and the last time we had real rain ("deep watering" by mother nature) was in February.
I gave my aloe trees their biweekly (every two weeks) watering this morning. Which on a good day is 2-3 liters per established plant and 10 liters per recent installation. I have no idea whether any of that would be considered deep watering but it keeps the succulents alive.
I would imagine they could take a whole summer with no water but it would not be pretty.
With respect to garden anxiety, I'm going to downgrade my condition (related to bugs in my Dudleyas) to reasonable forboding. I have tossed five plants and an equal number are under treatment. There is a message for me in the scale and reproducibility of the failure in that particular experiment.
Also, it's interesting to consider the weather-related anxiety, such as it is. We have a predictable summer drought every single year, as a climatic feature of the region. So there's no anxiety to be had about that drought, really, because it's going to happen. The question is more how long it will continue (3-6 months). And really, as far as most plants in the garden are concerned, that's an endurance test no matter what.