Composting in Cold Weather
by Sandy Swegel
It snowed yesterday. It’s going to snow again today. This makes me so happy because it means I get a vacation from working. My gardening business is a lot like a teacher’s schedule. Work like crazy most of the year then get a wonderful interlude to catch up on the rest of life. Working in the garden may come to an end during Colorado winters, but eating usually continues and we continue to make lots of food scraps that any gardener would hate to waste.
When I lived on acreage, I did all my food composting by sending it through the chickens. The backyard chickens loved food scraps and eagerly ran around when I brought the compost bucket. Even if it was just onion scraps and things they didn’t like to eat, they relished scratching it around and mixing it with the coop bedding and poop. Spring compost in the making.
Without chickens, there are still at least three things you can do to compost in winter and capture your kitchen scraps:
I empty mine to about ¼ full of compost in progress with lots of worms. I fill it all the way to the top with dry leaves and sort of hollow out the center. The leaves don’t freeze solid and all winter I drop the scraps down the middle of the leaves. The leaves provide some insulation and the food scraps and leaves at the bottom of the pile are warmed enough by the earth that a tiny bit of composting keeps happening even when temps get well below freezing. The earthworms are slow but still keep working and reproducing.
Dig a Trench in Fall
One year I dug a foot-deep trench the entire length of my garden bed where I normally plant tomatoes each year. I left the excavated dirt on the side of the trench. Every time the indoor compost bin was full, I just took it out to the garden and dumped it. If things weren’t too frozen, I pulled some of the excavated dirt on top of the food. If there was snow on the ground, I just put the scraps on top and eventually, it fell into the trench. The key to the success of this method is that the trench was easy to reach from the back door so I didn’t have to hike through the snow. Come March and April, the trench was crawling with decomposers and happy earthworms. By end of May, it was broken down and I planted tomatoes right into the new compost. No heavy lifting.
Make a Worm Windrow Compost.
John, the Worm Man, Anderson in northern Colorado keeps his worms happy all winter by setting up long short windrows of compost, food scraps and worms. He throws old carpet or tarps over the top. Periodically, he lifts the carpet and puts new scraps on top of the piles. The worms slow down in winter but keep working and reproducing.
Photo Credit: http://nynofabeginningfarmers.wordpress.com/2011/06/21/workshop-re-cap-producing-quality-food-and-a-green-community-through-urban-farming/http://voices.yahoo.com/how-prepare-compost-bin-cold-weather-12398636.html?cat=32