Season Extension

• Start crops earlier in the spring
• Keep them going later in the fall
• Grow cool-season crops all through the winter


Heated, mechanically vented (thermostat)


• Cannon Hort Plots greenhouse: 22' x 30'
• Start seedlings before last frost


Season extension:
not just for cold weather
• Help fall seedlings get started, or stretch spring crops' season
• Protect tomatoes from sunscald
• Stretch shade cloth over hoop house or mini-hoops

Row Cover

Less frost protection, but more portable

Season Extension Resources

Hoop House Plans and Instructions

The Kerr Center sponsored several workshops on hoop house (also known as high-tunnel or cold frame) construction.  The workshops focused on the low-cost, user-friendly design developed by producer grant recipients…
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Learn About: Hoop House Construction

Plans, instructions, and illustrations for building a low-cost Hanley-style hoop house. Learn more