Keyhole Gardens (how to & design)


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The structure of the keyhole gardens is to create a circular compost pile. Around the compost, soil is to be surrounded in a U shape built up using stacked rocks or another barrier to hold the soil around the compost. As rain falls through the compost, the nitrogen and other minerals from the compost will be slowly released like a liquid fertilizer into the soil.
The first step in making a keyhole garden is either making the cylindrical compost hole with mesh, wire, or some kind of fencing.
Secondly, make the outer frame with bricks, rocks, wood, or other materials to contain the soil. Shape the frame like a U so that you can walk in the space.
Third, lay down cardboard at the bottom of the garden to suppress weeds.
Fourth, begin by adding soil in the garden, and fill the compost cage with food scraps.

Below are examples of the many ways gardeners have made keyhole gardens.


libertygarden.us

libertygarden.us


university of bristol


flickr.com


inhabitat.com

vcmga.org

almostancientpots.com


keyholefarm.com

vitagardens.com

pinterest.com

vermicomposters.ning.com

niftyhomestead.com


niftyhomestead.com

sandiegouniontribune.com


imgur

-Cassie K
Original post @ Keyhole Gardens (how to & design)
 
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Fascinating. I have a compost bin and whilst the soil is great it takes time to "make" and awkward to access. This keyhoe design i find appealing because of it's practicality. You just keep topping it up and it feeds your veggies if i understand correctly No stirring, no waiting.and it looks good to boot(y). Thanks Cassie K. You've got me thinking:)
 
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That's a great idea! I love it. Put heavy feeders toward the center, and light feeders toward the outside. You'd have a million worms, too.
 
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