Raised Bed Height
12" minimum with good soil as a base. Use cedar or redwood 2X in 12" widths if you can find it. Do not scrimp on the boards or use treated wood. Pay now and it will last longer than you will. Then add a second board for the finished height.
See the container section "Going to the Dark side" for some pictures.
I plan to write an experiencial article on how to build a raise bed this Winter.
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