My hoophouse can get really hot, depending on if it is sunny or not. A couple weeks ago, when it was 70 degrees for two days, my hoophouse got to 110 degrees inside! Yikes! When I opened the door, a wave of humidity hit me, it was like a sauna! I had to open up the door and window for a long time to cool it down in there. Poor lettuce plants.
Unfortunately, the hoophouse has been causing my tomato plants a lot of stress and yellowing of their leaves. I think it is because it gets really hot in the hoophouse during the day, and then plunges at night. I took a Green Zebra that was completely yellowed and dead looking out of the hoophouse for a week, and now it is green, lush and healthy again. Weird, huh?
Taryn