Nice! I dug a mini version (only about a foot and a half deep and foot and a half high) last year and the added organic matter is noticeably improving the soil's texture and moisture retention.
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Nice! I dug a mini version (only about a foot and a half deep and foot and a half high) last year and the added organic matter is noticeably improving the soil's texture and moisture retention.
I have seen them as high 6 feet before. I am told the higher they are the better the moisture retention is.