In the highlands around Cusco, nighttime freezes can make outdoor farming nearly impossible for much of the year, and a single cold night can wipe out weeks of work. For families who rely on what they grow, that risk shapes what they plant, what they eat and what they can sell. Greenhouse farming offers a practical way to change those odds, and it's one of the projects Safe Homes Movement builds with families in Cusco's highland communities.
In this article, you will learn why farming at high altitude is so challenging, how greenhouse farming protects crops and expands what families can grow, how communities build and maintain greenhouses together, and what students in engineering, architecture and environmental fields can learn from these projects.
In the Andes, cold nights and frost are a constant threat. Reporting from the region by IPS News describes highland communities in Cusco where temperatures drop below freezing and soils have low fertility. Greenhouse Management also describes highland villages where a severe climate, thin air and poor soil contribute to malnutrition in children and adults.
Outdoors, many highland families rely on hardy staples such as potatoes, maize and beans, according to the same IPS News report. These crops are important, but a limited diet can leave gaps in nutrition, especially for children. In communities like Chahuaytire, where many men work in cities while women and children maintain the home and the fields, a reliable food source close to home matters for the whole family.
A greenhouse traps heat from the sun during the day and shields plants from frost, hail and wind. Safe Homes greenhouses combine a frame, transparent roofing, a ventilation system and drip irrigation. Ventilation keeps plants from overheating on sunny days, and drip irrigation delivers water directly to the roots, which helps conserve it.
Inside a greenhouse, families can grow vegetables and herbs that struggle outdoors at that altitude. In Chahuaytire, a rural community in the highlands of Cusco, families planned to grow strawberries, lettuce and onions, among other crops. Olga, a young mother from Chahuaytire, has planted lettuce, onion, carrot and broccoli in her greenhouse.
| Challenge outdoors | How a greenhouse helps |
|---|---|
| Frost and freezing nights | Traps daytime heat and shields plants |
| Hail and strong wind | Physical cover protects crops |
| Short growing season | More stable conditions through the year |
| Limited crop variety | Space for vegetables that need warmth |
The goal of greenhouse farming in these communities is not only more food, but more variety. Year-round cultivation gives families fresh produce at home, and they can sell surplus at local markets. That extra income can help cover school fees, health care and home improvements. Safe Homes projects also use organic pest control and composting, and growing food locally reduces the need to transport it.
In Chahuaytire, the build is a shared effort. Volunteers start in Cusco and hike to the community, where residents welcome them and a local leader, Victor, coordinates the work. After a brief orientation, volunteers help clear the land, prepare the soil and build the structure, and they keep working even when it rains. Read more about these greenhouses in Cusco's highlands. That shared work matters for long-term success: community members are trained to select materials, set up ventilation and install irrigation, so families can manage and repair their greenhouses after the volunteers leave.
Safe Homes Movement, powered by MEDLIFE, builds greenhouses with families in the highlands around Cusco. Every project follows a 50/50 model: families identify the need and work on site, while Safe Homes staff and local community leaders guide volunteers at every step. Learn more about the purpose of greenhouse projects and meet the families our greenhouse projects uplift. As Ana Maria from Chahuaytire put it: "I thank all the students for building my greenhouse from the bottom of my heart."
For students, greenhouse farming projects connect several disciplines at once: structural basics, climate and heat, water and irrigation, and food systems. They also show how a small structure fits into a family's daily routine, from managing water on a sunny day to checking plants after a cold night. On the development service learning trip, students work alongside families, Safe Homes staff and local leaders in Cusco, as well as in Lima and Tena, depending on each community's priorities. Trips run in summer, winter and spring.
Greenhouse farming at high altitude shows how a simple structure can change what a family eats and earns. Building one alongside the people who will use it every day is an experience that stays with you.
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At high altitude, frost, hail and cold nights can destroy crops. Greenhouses trap the sun's heat and protect plants, allowing families to grow a wider variety of food.
Safe Homes greenhouses in Cusco's highlands grow vegetables and herbs. Families in Chahuaytire have planted crops such as lettuce, onion, carrot and broccoli, and plan to grow strawberries.
Yes. On the Development Service Learning Trip, students build greenhouses alongside families, guided by Safe Homes staff and local community leaders.