Coldframe for Lettuce
 

I'm new to using Newsgroups. I'm a vegetable and flower gardener in
Massachusetts (near New Hampshire border). I would like to get a
jumpstart on growing some lettuce. I've read that I can make a simple
cold frame from an old window frame supported over the ground with hay
bails. I would like to know if anyone has tried this and might anyone
have some growing suggestions?