1/27/2000, outside tempFront of high tunnel8:00, frozen kale, inside temperature about 20 FOakleaf lettuce.  Notice the ice on the leaves.9:00, temperature about 32 FRecovered lettuce10:00, temperature about 55F, kale recovered2:00, temperature about 80 F, Solar Gain!But outside, it's still cold, about 19 degrees F for the day's high
Au Naturel Farm
People always ask us, what happens when the temperature goes below freezing in these unheated structures ?  The answer is, the produce freezes.....  and recovers !  To see this sequence, clock through the pictures below. It's a miracle everytime we see it happen !