I am starting a nonprofit organization with the goal of assisting older/handicapped people find a bit more life. The first program will be to design, build, and deliver cold frames (small box with glass top placed against the South side of a home with plants growing inside) so they can grow small plants for decoration or for starting seeds in late winter for summer use. While the boxes are fairly simple, I would like to take advantage of any experience available here. What has worked well, and not so well? Thanks.
Tom Birdwell