The higher your latitude the less sunlight you get in the winter. So if you want plants growing all year, you need supplemental light. Higher...
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The original was posted on /r/greenhouses by /u/quagmireonfire on 2025-09-25 12:31:28+00:00.

The higher your latitude the less sunlight you get in the winter. So if you want plants growing all year, you need supplemental light. Higher latitudes are also colder. So you need to add supplemental heat. At a certain point you are spending more energy on light and heat in a greenhouse than you would use for a completely artificial grow room in a well insulated basement. So where is the point where greenhouses just aren’t worth it?