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Build a Compost Heap

Build a Compost Heap

So often, the obvious solution is right at our fingertips, but it looks so simple that we fail to notice. Generations of gardeners have consistently come up with the same chain of logic: A fertile soil is the key to growing garden vegetables; compost is the key to a fertile soil. The first step in the four-season harvest is learning to make good compost. It’s not difficult. Compost wants to happen.

Pick a site near the garden so the finished compost will be close at hand. Whenever possible, place the heap under the branches of a deciduous tree so there will be shade in hot weather and sunlight to thaw the heap in spring. A site near the kitchen makes it convenient to add kitchen scraps. Access to a hose is handy for those times when the heap needs extra moisture. If the site is uphill from the garden, the heavy work of wheelbarrowing loads of compost will have gravity on its side.

Build the compost heap by alternating layers of brown ingredients (such as dried grass stems, old cornstalks, dried pea and bean vines, reeds, and old hay) with mostly green ones (young, moist, and fresh materials such as kitchen wastes, grass clippings, fresh pea vines). Begin with a layer of straw about 3 inches deep, then add 1 to 6 inches of green ingredients, another 3 inches of straw, and then more green ingredients. The thickness of the green layer depends on the nature of the materials. Loose, open material such as green bean vines or tomato stems can be applied in a thicker (6-inch) layer, while denser material that might mat together, such as kitchen scraps or grass clippings, should be layered thinly (1 to 2 inches). These thicknesses are a place for you to start, but you will learn to modify them as conditions require.

Sprinkle a thin coverage of soil on top of each green layer. Make the soil 1/2 inch deep or so depending on what type of green material is available. If you have just added a layer of weeds with soil on their roots, you can skip the soil to the compost heap has both a physical and a microbiological effect: physical because certain soil constituents (clay particles and minerals) have been shown to enhance the decomposition of organic matter; microbiological because soil contains millions of microorganisms, which are needed to break down the organic material in the heap. These bacteria, fungi, and other organisms multiply in the warm, moist conditions as decomposition is initiated. If your garden is very sandy or gravely, you might want to find some clay to add to the heap as the soil layer. As an additional benefit, the clay will improve the balance of soil particle sizes in your garden.

Read more: Home, Lawns & Gardens, Reduce, Recycle & Reuse

Adapted from Four-Season Harvest, by Eliot Coleman.Copyright (c) 1992, 1999, Eliot Coleman. Reprinted by permission of Chelsea Green Publishing Company.
Adapted from Four-Season Harvest, by Eliot Coleman

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Annie B. Bond

Annie is a renowned expert in non-toxic and green living. She was named one of the top 20 environmental leaders by Body and Soul Magazine and "the foremost expert on green living." - Body & Soul Magazine, 2009. Learn Annie's latest eco-friendly news on anniebbond.com, a website dedicated to healthy and green living.

Go to the Source

Four-Season Harvest

Eliot Coleman shows how North american gardeners can successfully use that sun to raise a wide variety of traditional winter vegetables in backyad cold frames and plastic-covered tunnel greenhouses without supplementary heat.buy now

162 comments

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12:13PM PDT on Jun 3, 2012

Grazie per le informazioni.

4:33PM PST on Feb 29, 2012

Thanks for the information!

5:35AM PDT on Jun 30, 2011

Thanks for the information!

10:54PM PST on Nov 14, 2010

Good article about layering, but what if you have no dried leaves or plants? I just keep adding plants and clipping and kitchen waste and somehow it all turns into wonderful humus. Sprinkling on some soil does make sense and would speed up the time it takes to turn into compost. And talk about worms! My husband always knows where to go for worms when he wants to go fishing.

1:00PM PDT on Oct 17, 2010

I didn't know this is why you add soil to the heap!! Good to know, and will help me remember to add it to the compost bin. (We prefer an enclosed bin that we can spin. It's a lot easier than turning with a pitchfork or shovel, and most critters can't get into it.)

I disagree with putting the heap near the kitchen, unless it's only relatively near the kitchen, as opposed to a mile walk (!) Heaps near a home would attract unwanted visitors that could end up in your house. Here in Florida, that could mean fruit rats (or other rats), snakes, roaches, etc.

8:23AM PDT on Oct 17, 2010

My boyfriend and I just started our own compost heap to use as fertilizer for our flower garden next year. I love the thought of reusing what most people throw away.

12:54PM PDT on Oct 16, 2010

ty

5:12AM PDT on Oct 16, 2010

My compost piles attracted rats, no matter what I tried :-(

12:29PM PDT on Oct 15, 2010

Thanks for posting.

12:19PM PDT on Oct 13, 2010

Thank-you for the informative article. I have two green thumbs. Thus, even my house plants are minimal. However, I have a friend who will find this article 2 b of great interest. I thank-you & please do have a pleasant day

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