Colder nights and shorter days mark the end of our traditional garden season. This year, I'm trying a caterpillar tunnel which consists of hoops covered by clear plastic and held down by rope. Using a hoop bender, I created 6 foot hoops from 10 foot sections of metal tubing. With the caterpillar tunnel over my raised bed, I'm hopeful that my spinach season will be extended into winter and that I will get some frost protection.
I can lift up a side to harvest or ventilate during hot weather.
I can also lift up both sides when the weather gets too hot. With our upcoming cold snap dipping into the mid 30s at night, I doubt too much heat will be a problem!