Build a $300 underground greenhouse for year-round gardening (Video)

Can’t afford a glass greenhouse? Check out how to build your own underground greenhouse for cheaper and for growing veggies 365 days a year, even in cold climates. Growers in colder climates often utilize various approaches to extend the growing season or to give their crops a boost, whether it’s coldframes , hoop houses or greenhouses. Greenhouses are usually glazed structures but are typically expensive to construct and heat throughout the winter. A much more affordable and effective alternative to glass greenhouses is the walipini (an Aymara Indian word for a "place of warmth"), also known as an underground or pit greenhouse. First developed over 20 years ago for the cold mountainous regions of South America, this method allows growers to maintain a productive garden year-round, even in the coldest of climates. Here’s a video tour of a walipini that shows what a basic version of this earth-sheltered solar greenhouse looks like inside: How a Walipini works and how to build one It’s a pretty intriguing set-up that combines the principles of passive solar heating with an earth-sheltered building. But how to make one? From American sustainable agriculture non-profit Benson Institute comes this enlightening manual on how a walipini […]

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