To answer questions I posted a pic. There is probably too much wood in the mounds but i hit really hard clay about 2 feet deep so I had to use lots of wood to make the soil cover the whole mound without hauling in more from elsewhere.
I DO NOT WATER THIS GARDEN. It has however been a very wet spring so the true test will come in the summer. My 2nd design will have more water retention capabilities but if I HAD to water this one in the heat of the summer I thought a single soaker hose running along the top might be enough to graveity feed the whole mound. The hope is that they survive the summer heat without water and that I focus more on perennial growth so that I do not worry about replanting, less weeding etc.
As you can see from the picture I have been digging a hole as deep as I can by hand easily and then stack all the wood and branches as best I can without too many large gaps and then I will attach addional boards and plant as I backfill. This attempt will have a shelf under each board to hole soil back and make more of a crevice for multch and to prevent the mound from settleing too much (some of my plants were sinking into the mound like quicksand during the first couple heavy rains) I think the new design will prevent this. Also no fertiliser besides organic matter was put into the soil. The soil is very high in clay and I am located in Ontario Canada.
Squanch that. And squanch this tiny ad:
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