self sufficient life

Winter composting

Most gardeners know that good compost is an invaluable addition to their garden soil and the avid gardeners I know all have a compost pile to make their own compost. Few, however, continue their composting during the winter months because they think the cold weather will grind all activity in the compost bin to a halt.

Yes, the composting process is a lot slower in winter, but the process doesn’t stop completely. Even if the temperatures drop well below freezing this winter, a little work and planning now will give your composting a head start once spring arrives.

Harvest your compost, so you have plenty of room in your bin for the winter composting. Since you will be mostly adding greens to your bin throughout winter, you’ll need some browns to keep the bin in balance, this is where all the leaves you raked up come in handy.

With a steady supply of fresh kitchen scraps, your compost pile should be able to keep itself fairly warm and do it’s thing. Some insulation around the bin can help to keep the temperatures up and speed up the composting process a little. While the best place for your compost bin in the summer is under some big trees, or any other shaded place to prevent the compost from drying out, in winter you’ll want to place it in a sunny spot, so the sun can warm up your compost pile.

What if you don’t want to move your compost pile or add insulation? Keep on adding your kitchen scraps to the bin and balance with dry leaves. When your compost pile completely freezes this winter, don’t worry, it’s a good thing! The freezing and thawing will damage the fibers in your soon-to-be compost making the breakdown easier once spring arrives.

Do you compost during winter?

Worms in supply chain management

Summer was ending when we got the key to our new home and greenhouses. Heating the greenhouse this winter is really not an option because it will be too costly. Still, we didn’t want to wait until spring, so we quickly did some vegetable planting, hoping for a small harvest before winter really kicks in.

As we where running out of good soil for the planting I decided to try something different. We had some Styrofoam fish boxes laying around which looked like a perfect size planting container to grow some cucumbers in. The worms in the worm bin had not produced enough vermicompost yet, but I figured: why not let the worms continue their work while the plants are already growing?

So, I filled up the fish boxes 2 thirds of the way with a mixture of halfway done garden compost and the contents of my worm bin, including the worms. The boxes where toped of with some good soil. While the plants grow the worms should create a steady supply of worm castings.

Not knowing if this would work, I was pleasantly surprised by the growth rate of the cucumber plants. Now, six weeks later, the plants have grown nicely and are starting to develop fruits. This method of growing cuts out the work of having to harvest the vermicompost and the plants seem to like the steady supply of fresh nutrients.

I just found out that Compost Guy is doing the same, he calls it “Garbage Gardening”. I think if you want to sell your produce, a better term for this method of gardening should be used, as “Garbage Gardening” will probably not market very well.

Worm composting

If you want good soil for your vegetable garden, flower beds or potted plants, without having to pay for it, composting is what you should do. I’ve had a big compost bin standing in my garden for quite a while and it does a great job, but it takes ages to turn my kitchen scraps into good compost. These big compost bins rely on bacteria to break down the scraps and they will take between 6 months and a year before you can use the compost.

Worms however can compost a lot faster. While digging in my garden I found a good number of worms which I have added to my compost bin to speed things up. When I recently decided to move my compost bin however, I found no worms in it. After a few weeks of hot and dry weather the worms all dug down into the soil beneath the bin and where gone.

If you want to compost with worms, which is also called vermicomposting, you need a different kind of compost bin. A worm bin will have a closed bottom, so the worms can’t get out. You do have to drill a couple of holes into the bottom, so excess water can get out. You can use any type of plastic bin for worm composting, but ideally it will have a matching lid. Worms breath like all animals so you need to make sure they get enough air. A few slits or holes in the side of your bin will take care of the air circulation, but you want to cover them up with some screening to keep flies out.

Fill your bin about half way with moist newspaper or cardboard strips and add a layer of soil. If you have a compost bin you can probably find some worms in there or you can do some digging in your garden. You can also go the easy way and buy some composting worms in a garden center or order them online.

Keep your worm bin out of the sun and make sure it stays moist. The worms will accept temperatures between 10 and 30 degrees centigrade but will do best at around 25 degrees. Be careful not to overfeed the worms or your worm bin will start smelling bad. Don’t add any scraps until the last batch has been eaten completely and always burry the scraps you are adding. In time you will get a feel for the amount of scraps your worm bin can process.

Compost vs. Aquaponics

Almost 4 weeks have passed since I set up my aquaponics system and planted a little tomato plant in there. Another seedling from a seed of the same tomato has been planted into compost which I have enriched with cow manure. The plan was to compare the total yield of both plants, but there is nothing left to compare.

The aquaponics plant has not grown at all in the 4 weeks. The only difference to how the plant looked 4 weeks ago is the color: the plant is now purple, which is a sign of not enough nutrients and too much water. I guess I planted too early. I will let the system mature a little longer and try again in about a month.

The plant in compost is doing very well. It has grown tremendously in the last 4 weeks and looks very healthy with juicy leaves and a thick stem. Even the Lego minifig I placed into the pictures for size comparison noticed the difference and wanted to stay in the compost veggie-garden.

For now the score is: Compost 1, Aquaponics 0. But I expect this to change once the system has matured…