This is the kind of garden to keep building on, replacing the water-intensive plants with those that are hardier, opening up paved areas and using stone and gravel beds, each year is an experiment with its rewards and casualties, as any gardener knows.
But the shade is a huge relief in the summer, the strategic tree planting has paid off. I'm ten degrees cooler than unshaded yards, the tradeoff being that I now need to water the trees themselves about once a month in the spring and early summer except for the oak tree.