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USA High Tunnel for Cut Cultivated Greens Growing
A high tunnel for cut cultivated greens extends the outdoor growing season by 6-10 weeks on each end of the calendar, allowing growers to supply local markets from early spring through late fall or even into winter in mild climates. Open-ended high tunnels provide the natural ventilation that prevents the humidity buildup and disease pressure that can occur in closed structures, while still offering critical frost protection and rain cover that keeps greens clean and marketable.
Technical Specs
Ideal Temperature
50 to 72 °F
Relative Humidity
55 to 75%
Crop Cycle
25 to 50 days
Yield vs Field
2 to 4×
6-10 week season extension each end
A high tunnel adds significant weeks of early spring and late fall production, extending local market supply into the shoulder seasons when prices are typically higher.
Clean product without soil splash
Overhead cover prevents rain splash that contaminates cut greens with soil, reducing washing needs and meeting the clean-product standards of direct-market and foodservice buyers.
Natural ventilation prevents disease
Open ends provide airflow that prevents the humidity buildup that drives downy mildew and other foliar diseases common in closed structures with dense greens plantings.
Agronomist Tip
In cut greens high tunnels, use row cover fabric as a second layer inside the tunnel during the coldest nights, this double-layer approach can protect greens to 10-15°F colder than the tunnel alone, significantly extending your fall and early spring production window.
Other crops in High Tunnel
See all High Tunnel crops →Ready to grow Cut Cultivated Greens in a high tunnel?
Our team will help you design the right structure for your farm, no cost, no commitment.