Amerlife High Tunnel Greenhouse

High Tunnel Greenhouse: A Comprehensive Guide to Boosting Crop Yield


In recent years, high tunnel greenhouses have gained popularity among farmers and gardeners alike. These structures offer numerous benefits, including extended growing seasons, protection from harsh weather conditions, and increased crop yield. In this guide, we will explore everything you need to know about high tunnel greenhouses, from their construction and benefits to maintenance tips and crop selection.

Understanding High Tunnel Greenhouses

What is a High Tunnel Greenhouse?

A high tunnel greenhouse, also known as a hoop house or polytunnel, is a type of greenhouse structure characterized by its simple design and affordable cost. Unlike traditional greenhouses, which have permanent foundations and structures, high tunnel greenhouses are typically constructed using lightweight materials such as metal hoops and polyethylene film.

28x10x7.5 FT / White

Components of a High Tunnel Greenhouse

High tunnel greenhouses consist of several key components, including:

  • Frame: The frame of a high tunnel greenhouse is typically made of galvanized steel or aluminum hoops that form the structure's skeleton.
  • Covering: The covering of a high tunnel greenhouse is usually made of UV-resistant polyethylene film or greenhouse plastic, which allows sunlight to penetrate while providing protection from the elements.
  • End Walls: The end walls of a high tunnel greenhouse can be either permanent or removable, depending on the design. They help regulate temperature and humidity levels inside the structure.
  • Ventilation: Proper ventilation is essential in high tunnel greenhouses to prevent overheating and humidity buildup. Ventilation options include roll-up sidewalls, ridge vents, and exhaust fans.

Benefits of High Tunnel Greenhouses

Extended Growing Seasons

One of the primary benefits of high tunnel greenhouses is the ability to extend the growing season, allowing farmers and gardeners to cultivate crops year-round. By creating a controlled environment, high tunnels protect plants from frost, wind, and other adverse weather conditions, enabling continuous production even in colder climates.

Increased Crop Yield

High tunnel greenhouses provide an ideal growing environment for a wide range of crops, including fruits, vegetables, flowers, and herbs. By optimizing temperature, humidity, and light levels, high tunnels promote healthy plant growth and development, resulting in higher yields and quality produce.

Seasonal Crop Protection

In addition to extending the growing season, high tunnel greenhouses offer protection against pests, diseases, and extreme weather events such as heavy rain, hail, and strong winds. The covering material acts as a barrier, preventing pests from infesting crops and reducing the risk of crop damage.

28x10x7.5 FT / Green

Constructing a High Tunnel Greenhouse

Site Selection and Preparation

Before constructing a high tunnel greenhouse, it is essential to select a suitable site and prepare the ground accordingly. Choose a location with good drainage, ample sunlight, and easy access to water and electricity. Clear the area of any debris, rocks, or vegetation, and level the ground to ensure a stable foundation.

Frame Assembly

Once the site is prepared, begin assembling the frame of the high tunnel greenhouse according to the manufacturer's instructions. Most high tunnel kits come with pre-cut and pre-drilled components for easy assembly. Start by installing the baseboards or ground posts, then attach the hoops or ribs to create the frame.

Covering Installation

After assembling the frame, it's time to install the covering material. Stretch the polyethylene film or greenhouse plastic over the frame, ensuring a tight and secure fit. Secure the covering using batten strips, wiggle wire, or other fastening methods, and trim any excess material for a neat finish.

Maintaining a High Tunnel Greenhouse

Regular Inspection and Cleaning

To ensure optimal performance and longevity, high tunnel greenhouses require regular inspection and cleaning. Check the structure for signs of damage, wear, or tear, and repair any holes or tears in the covering material promptly. Remove debris, dirt, and pests from both the interior and exterior of the greenhouse to prevent contamination and disease spread.

Temperature and Humidity Management

Proper temperature and humidity management are essential for plant health and productivity in high tunnel greenhouses. Monitor temperature and humidity levels regularly using a thermometer and hygrometer, and adjust ventilation as needed to maintain optimal growing conditions. Consider installing automatic venting systems or fans for precise climate control.

20x10x7.5 FT / Green

Product Recommendation: Amerlife Everglade High Tunnel Greenhouse Kit

For those looking to set up their high tunnel greenhouse, we recommend considering a high-quality high tunnel greenhouse kit. Amerlife Everglade High Tunnel Greenhouse kits come with all the necessary components and instructions for easy assembly, making them ideal for both beginners and experienced growers. With a high tunnel greenhouse kit, you can enjoy the benefits of extended growing seasons, increased crop yield, and seasonal crop protection without the hassle of sourcing individual materials.



High tunnel greenhouses offer a cost-effective and efficient solution for extending the growing season, increasing crop yield, and protecting plants from adverse weather conditions. By understanding the components, benefits, construction process, and maintenance requirements of high tunnels, farmers and gardeners can maximize their productivity and success.

FAQs (Frequently Asked Questions)

  • Q: How long does it take to construct a high tunnel greenhouse?
    • A: The construction time for a high tunnel greenhouse depends on factors such as size, complexity, and weather conditions. However, most high tunnels can be assembled in a few days to a week with the help of a small team.
  • Q: Can I grow organic crops in a high tunnel greenhouse?
    • A: Yes, high tunnel greenhouses provide an ideal environment for organic crop production, as they allow for precise control over growing conditions and minimize exposure to pests and diseases.
  • Q: Are high tunnel greenhouses suitable for small-scale farming?
    • A: Yes, high tunnel greenhouses are well-suited for small-scale farming operations, backyard gardens, and hobbyist growers. They offer scalability, flexibility, and affordability compared to traditional greenhouse structures.
  • Q: How do I prevent overheating in a high tunnel greenhouse during the summer?
    • A: To prevent overheating, ensure adequate ventilation and airflow by opening sidewalls, ridge vents, or exhaust fans as needed. Consider installing shade cloth or reflective coverings to reduce solar radiation and heat buildup inside the greenhouse.
  • Q: Can I install heating systems in a high tunnel greenhouse for winter cultivation?
    • A: Yes, heating systems such as propane heaters, wood stoves, or radiant floor heating can be installed in high tunnel greenhouses to maintain optimal temperatures during the winter months. Proper insulation and temperature control are essential for successful winter cultivation.
  • Q: What crops are best suited for cultivation in high tunnel greenhouses?
    • A: A wide range of crops can be grown successfully in high tunnel greenhouses, including tomatoes, peppers, cucumbers, lettuce, spinach, strawberries, and herbs. Choose crops that are well-adapted to your climate and growing conditions for the best results.

Leave a comment

Please note, comments need to be approved before they are published.