is real - in greenhouses.
I'm either getting ready for the zombie apocalypse, or getting ready for massive food price inflation, or growing a victory garden in case of world war.
Anyway, the dog pen is not used much for dogs anymore and Nancy wanted to try and preserve some of her perennial pots for next year.
So we put up this kit greenhouse. The plastic covering can be slipped off in the summer. Yesterday I measured a 40 degree difference between the inside and the outside.