Drought seems to be a permanent feature of California weather and I wanted to reduce our use of water.
After I removed the sod I dug down 12-18 inches and removed the larger rocks. My garden consists of river cobble cemented together with clay. I then dug in compost and turned over the sod in some places and piled the rest of it high to make a berm at the back of what had been the lawn. I couldn't afford to lose the sod, the only decent soil in the yard.
You might ask why I have river rock when I live on a hill. The sign at the right explains how this came to be. In brief, at one time this was a valley which filled with volcanic ash. Since the ash was so hard it did not erode easily, thus the valley became a hill and the former hill became a valley.
The rock I removed I used to make raised beds and dry streams.
I covered the old sod with layers of newspaper and cardboard. Then I got 8 yards of bark mulch and put it down thick.
I made three raised beds for vegetables. I'll wait to plant the rest of the garden and allow the sod to decompose. I'll use drip irrigation as we have in other areas of the garden.
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My World Tuesday is brought to us by Klaus, Sandy, Wren, Fishing Guy, Louise and Sylvia.