What to Overwinter in Greenhouse/Coldframe
Well, my son made a metal frame greenhouse for me in his Agricultural Science class at Orange High, and I have spent 100 hours over the last week covering it with a double layer(0.5" air space) of heavy plastic (a remnant bolt of the same material used for car convertible windows). Now my question is what do you think will overwinter in it? It is very small - 4' X 4.5'. I think I'll be able to start seed trays in it a little earlier than normal? I can plug the gaps left between the roof corrugations and the frame - do you think it would be adviseable?