[Hippocrates_Garden]

it depends, there are, and can be reasons to orient otherwise. things like land slope, or even if the greenhouse is made such that it “runs” east/west with the north wall being opaque and insulated, possibly the west end as well. In my latitude the summer sun is essentially overhead in summer so orientation really doesn’t matter as much, though in winter I might prefer east/west with tall stuff on the back (North side) and shorter on the front (south). while a plant may only get sun on one “side”, they tend to move their leaves to point to the sun, and would thus possibly get more hours of sun. So.. it depends.