I feel like I’ve been living under a rock sometimes, I tell ya! I’ve written about all sorts of different “vermigardening” methods here on the blog.
Yet somehow the “Keyhole Garden” concept has remained off of my radar screen all these years…at least until RWC follower/customer Liane M recently clued me in, that is!
We had been having an interesting exchange about Liane’s huge outdoor horse manure heap (in TX) – yours truly living vicariously through her plans to stock it with Red Worms – when she happened to mention (and included some pictures of) a “Keyhole Garden” project from a few years back.
It became very clear, very quickly that this was an approach literally meant for composting worms! (Whether it was on the mind of the original creator of the method, or not! lol).
One of the limitations of integrating composting systems into garden beds tends to be the challenge of being able to access the composting zone (for new waste deposits) throughout the growing season. Even with something like a vermicomposting trench (with a path running along side it) can get a bit inaccessible once a jungle of healthy crop plants like squash or tomatoes starts to really take off.
With the keyhole approach, you literally design the bed so that it has a permanent little path in to where the waste materials get deposited.
The walls of this type of garden can be built up in various ways. Although, not a permanent solution, I really like Liane’s straw bale walls, and suspect these would offer a lot of protection during the heat of summer.
Here is a video (created by someone else) providing a decent little overview of this approach, and showing some more permanent (and very nice looking) options.
I would love to know if others have tried Keyhole Gardening (with worms or otherwise) – and if so, what you thought about it!
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