View Single Post
Old February 1, 2018   #111
BigVanVader
Tomatovillian™
 
BigVanVader's Avatar
 
Join Date: Mar 2014
Location: Greenville, South Carolina
Posts: 3,099
Default

I've found mine does NOT get colder when I leave the ends open. I am also on a slope so the cold air may flow down and away from the coldframe. Either way I keep it opened and use row cover and I still have lettuce alive after weeks in the teens.
BigVanVader is offline   Reply With Quote