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Owl Bluff Farm in Minnesota uses a fossil-fuel-free greenhouse to grow organic crops year-round in winter.
Owl Bluff Farm in Houston County, Minnesota, is preparing to grow crops through its first winter using a deep winter greenhouse, one of five prototypes developed by the University of Minnesota.
The farm, operated by Carrie Calvo and Ari Struver with family support, produces certified organic vegetables and is named for local barred and great horned owls.
The greenhouse, part of a sustainable agriculture research initiative, enables year-round growing in cold climates without fossil fuels.
An open house was held in September 2025 to showcase the project, which aims to advance climate-resilient farming in northern regions.
Owl Bluff Farm en Minnesota utiliza un invernadero sin combustibles fósiles para cultivar cultivos orgánicos durante todo el año en invierno.