socalledunitedstates:

Keyhole garden

Is your backyard too hot and dry to cultivate the vegetables you have only dreamed of? Keyhole gardens were developed for the sole purpose of maximum crop output in the hottest and driest of conditions. Their low cost, low maintenance, and versatility make them a desirable gardening option for your yard and for gardening across the globe.

Humanitarian foundations spearheaded the development of keyhole gardening to help improve lives around the world. Keyhole gardening is simple enough to be taught to school-age children in third-world countries where the children then use the concept in their homes and villages. A single keyhole garden affords enough abundance to provide a large family with a year round supply of vegetables.

Keyhole gardens are circular raised bed gardens. The larger outer circles are where crops are planted. The center portion of these gardens are active composting baskets. Small aisles are built to access the compost baskets. Keyhole gardens get their name from the bird’s eye view of these features.

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