Square foot gardening is amazing. You get to grow all kinds of plants in a very small space. This, in turn, makes it easy to deal with sweltering heat. You don't have to water a lot, and weeding those small squares doesn't take a lot of time. Square foot gardening: Give it a try! (Note: No one is paying me to say this, I have gone temporarily crazy in the heat.)
For those interested, here is the other garden bed's progress!!