Worms need holidays too.
I’ve been monitoring my jerry-rigged outdoor worm bin heater, a 3-gallon plastic pail sunk into the earth inside a converted cold frame. Inside is a cheap 25W aquarium heater. This morning the outdoor temperature was 26°, and inside…a balmy 79°.
And the little buggers got a feast of food-processed kitchen scraps, coffee grounds and cornmeal.