We’re thrilled to introduce this growing technique to home gardeners! Our U-shaped, elevated Keyhole Garden has an integrated composter that transforms kitchen scraps into rich fertilizer and delivers it to plants. Pioneered in Africa, self-sustaining keyhole gardens are a traditional way to grow food in regions with poor soil and limited rainfall because they require less water and fertilizer to produce a big harvest.
Keyhole gardens are traditionally filled half-way with alternating layers of "brown" and "green” materials, similar to building a compost pile. As these materials decompose, they build rich, fertile soil, and they act as a sponge to hold moisture so it's available to plants during dry times. You can fill the rest of the bed with a mixture of potting mix, topsoil and compost. You're ready to plant! (If you prefer, you can fill the entire bed with a blend of potting mix, topsoil and compost.)