A walipini is an earth-sheltered cold frame. It derives its name from the Aymaran languages. It shares concept with the pineapple pits, that was used, as the name implies to cultivate pineapple especially, alongside other exotic fruits all the way back in Victorian era Britain and even in the cold plains of pre revolution Russia.
The walipini is seeing a modern renaissance as it allows for crops to be grown in greenhouse like settings, whilst requiring little to no heating, and thus is attractive to subscribers of permaculture and the sustainability movement.
- "Walipini Construction (The Underground Greenhouse)" (PDF). Solaripedia.com. Retrieved 24 January 2019.
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- "Build a $300 underground greenhouse for year-round gardening (Video)". TreeHugger. Retrieved 7 December 2014.