Step 5SHEET MULCH
When I first read about sheet mulching I was a bit skeptical, but I can personally attest that within a week there were worms where the soil used to be had pale alkaline clay, and the worms will mix the sheet mulch with what is underneath.
On a nice day soon after you have collected your cardboard, your many many bags of yard waste and a good amount of "raw compost" (uncomposted compost). Start laying out your beds, garden hose is a good way to delineate the shapes of your beds, or use rocks, sticks, chalk lines, etc.
LAYER 1:
hack down any weeds and leave them there, use a garden fork to make some holes in the ground but dont dig it up (that disrupts the soils structure)
LAYER 2:
water well and toss down a bunch of the raw compost, don't worry that it is un-rotted, it will be by the time any roots get to it, this makes a great place for worms and beneficial microbes to thrive
LAYER 3:
now cardboard, make sure the edges overlap at least 4 inches, or one inch stacks of news paper. This block weeds from coming up. Water the cardboard till its soggy
LAYER 4:
cover with green grass clippings, not to many like a good half inch.
LAYER 5: 9" to 12" of bulk organic material, like leaves, pine needles (no too many of these as they are pretty acidic) seedless straw, spoiled hay, clippings. The best is to layer all kinds of things. Toss in a few handfuls of finished compost if you can get some, this will ensure that there are beneficial microbes in there to begin the composting in place process. Water very thoroughly.
LAYER 6:
2 inches of garden soil mixed with some finished compost. This is so you have something to plant seeds/seedlings in.
LAYER 7:
Mulch: Nut shells, woodchips.
this traps the moisture in the whole business.
EDGING: rocks, bricks, broken concrete, wood, bottles, old tires cut in half for a scalloped edge. Tin cans driven into the ground a few inches. this will keep weeds out and your bed materials from spreading.
You can begin planting right away but it will be even better if you can do it a few months ahead of time.
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