I lost my tomato plants long ago due to a heater failure on a -2f night.
But the lettuce doesnt seem to mind.
It has been 10f in there many times. It slows, but keeps in growing. The tubes I buried 4ft down add and subtract 10°f so the greenhouse stays above ambient due to the boost and its own heat signature.
That's 3rd generation stock. I always let a few plants go to seed for next year.
If I bothered to thin it out that's about 100 head of bib and 6 or so oakleaf bundles.
Tomatoes get started next month.
Only two types and lettuce this year.
I'm focusing on trees this year and next.
Potatoes will just be tossed in a hole on a hill. They'll be free range taters.
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