Well,.....I think your theories might just work for you. Keep working on yours while we're working on ours and we will all learn together.
Mid upper Mississippi does still get hot a lot in Summer, and in Winter is still in a significantly less tropical area of the South to grow tropicals then here, which of course as MJ said is complex. 32 in the morning one day here can turn into a 80 degree day in afternoon and inside temperatures in a closed small greenhouse such as mine at 12'x10' can still mean 100+ degrees inside the greenhouse in that same afternoon. Our little hobby sized greenhouses don't have the leeway truly commercial greenhouses do with their mammoth sizes and systems compared to our tiny ones.
