Vermicomposting: How To Make Worm Castings
February 22, 2009 by Composting
Filed under Worm Composting
By: Ann Knapp
We have all heard of composting. Composting is simply the decomposition of organic waste like yard waste and kitchen waste into a very rich and nutritional dirt-like substance. Vermicomposting is very similar to composting, but vermicomposting uses worms to help speed up the composting process, resulting in a final product of a soil-like amendment which is literally loaded with nutrients for plants.
The first thing to know point out is that the worms about which we are talking are not your everyday backyard worms. Those little guys would die in a minute in a compost pile. The worms needed for vermicomposting are called Red Wrigglers. These Red Wrigglers love to spend their time in piles of manure and love eating organic waste, which is why they are so perfect for the job of vermicomposting. The worms that you find in your backyard garden are usually regular field worms which would not be able to survive in a pile of kitchen waste.
When considering what size bin you want to use, the container should be on the shallow side rather than really deep. It should also be wider than it is tall. The surface of the container should be about one square foot for every pound of waste you wish to place in it each week. There should be about 500 red wrigglers equaling about a half-pound for every cubic foot of the container. The container should have plenty of air holes, since air is necessary not only for the composting process, but for the worms’ survival as well. There should also be holes on the bottom of the container to allow drainage. There should be a screen covering each air hole and drainage hole to guarantee that the holes do not become worm holes or compost holes as well as air holes and/or drainage holes. If you produce too much organic waste for one normal sized container, it is much easier to maintain several small worm containers than one really big one.
To keep your worms happy, it is important to make sure that they are in an environment with the proper temperature, ventilation, and moisture. The air holes should be able to provide the necessary ventilation. There should be enough moisture to give the compost pile the feel of a wrung out sponge – not too wet, but not too dry. The temperature should be room temperature. Although worms can survive in a wide range of temperatures, anywhere from forty to ninety degrees Fahrenheit, they will be the happiest and therefore do their best work if they are at a comfortable room temperature.
There should be bedding on the surface of the container. This bedding should consist of shredded paper if the container will remain indoors. If the container will be kept outdoors, the bedding can consist of shredded paper or organic yard waste, such as dried grass clippings, sawdust, mulched dried leaves, etc. Yard waste should NOT be placed in an indoor container, because they can cause the compost pile to heat-up significantly which may kill your worms.
You can feed your worms a large variety of foods. Red Wrigglers will eat just about any organic kitchen waste you may produce, including carrots lettuce, cabbage, celery, banana peels, and tea bags. Tomatoes, coffee grounds, and citrus peels can be added into the container but only in moderation, since the acid could kill the worms. They also like to eat small amounts of bread, pancakes, grains, and noodles. Chopping up the food before you put it in the container will help it decompose.
You should harvest the vermicompost every two months or so. You will know that it is ready to be harvested when you can no longer make out the waste or the bedding, since they will have already decomposed. A good way to harvest the vermicompost without taking out the worms is to shine a light over the pile. This will chase the worms deeper into the pile in about ten minutes. You can then scrape up the top layer of vermicompost. Keep the light on to chase the worms even deeper into the pile, and then take out the next layer of vermicompost, and so on. It is very important to not take out any worm eggs that may be in the pile. They will hatch and turn into more worms which could make your vermicompost pile better, or enable you to use them to start another vermicompost container.
Once you have the vermicompost out of the container, you can use it to help just about anything grow. You can add some into your houseplants; you can sprinkle it on your flowerbeds; you can add it into the soil in which you want to plant seeds; and you can even sprinkle it around your lawn to help your lawn grow.
Composting for Beginners – Do’s and Don’ts, Bins and Tumblers
February 20, 2009 by Composting
Filed under Organic Composting
By: Vicki Duong
Lots of novice gardeners believe that their plants and vegetables only need plenty of water and sunlight in order to sustain a healthy and fruitful lifespan. However this is not entirely true as plants also need healthy soil rich in nutrients to be able to survive and grow properly. The solution to this dilemma is composting.
Now, most of us aren’t too sure of what the heck composting is or what it even entails – I know I didn’t! An easy way to explain it is composting is a way for us to give back to the earth by using organic materials such as food scraps, vegetable scraps, grass clippings, leaves and manure from grass eaters like cows, sheep and rabbits. In general, composting is a wonderfully organic process that benefits your garden and the environment tremendously. In today’s article we’ll go ahead and talk about the benefits of composting, what you should and shouldn’t compost, and some composting systems you should consider investing in.
We all know that when anything dies it starts to decompose – humans, animals, plants, it’s all a very natural process. But did you know that in turn, the soil becomes very rich in nutrients and new life starts to grow? That’s the true benefit of composting and that’s what you want for your garden. In addition to improving your soil, it saves you money, makes for terrific mulch for your garden, and places less burden on landfills.
Before you start undertaking a large composting project, there are a few key things you should keep in mind, like what you can and can’t use for composting. Let’s start with what you shouldn’t compost; this includes weeds full of seeds and/or diseases, pesticide infested plants, wood ashes, lime, barbeque charcoal, meat, grease, bones, dairy products, cat, dog and/or human waste, plastic, metal, glass, branches, wood chunks, anything contaminated, and large loads of soggy matter. Obviously anything in the aforementioned list would have an adverse effect on your compost, or won’t decompose properly, especially the bones, but we’ll go more into that later on in a future article.
With that said, it’s highly recommended that you use grass clippings, leaves, non-diseased and seed sprouting weeds, dead plants, food scraps like fruit and veggie wastes, cow, sheep or llama manure, straw/hay, coffee grounds, and even hair and lint when composting. These items break down quick and easily, giving you the end result that you’re looking for.
The next thing that you need to keep in mind is where you’re going to be doing all of this composting work. While some don’t mind working on their compost heap out in the open, like in the woods or in an open area preferably away from prying eyes (I never said it was a pretty looking process), I suggest looking into a compost bin or tumbler system. There are a couple of compost bin systems that you should consider: the one bin and multi-bin systems. For the money conscious the one bin system is the preferred method since it is easy and most municipalities even work with manufacturers to make this method available to the public. In addition, it’s easy to move about, most can hold heat well and is sturdy enough to keep rodents and other wildlife out. The multi-bin system is for households that produce a lot of waste; it generally does the same thing as the one bin method but it allows you to stockpile your materials in one bin and in the other when more materials become ready. Both methods take anywhere from three to eight months in terms of ready to use compost.
Another method you can consider is working with a compost tumbler, which isn’t cheap, but it is small if you’re working with limited space. Think of the benefits though: tumblers rotate which keep your compost aerated and generate heat, which in turn means that you’ll have a batch of ready to use compost in about three weeks. The wire collector is another option to weigh. Great for garnering up quick, ready to use composting, it’s cheap and you can even make one yourself out of rabbit wire or field fencing. However, I don’t really recommend it too often because it’s easy for wildlife to break in to and it doesn’t hold in heat very well. But the great thing about it is after your compost is done and ready, all you have to do is just remove the wire covering.
Do keep in mind the laws of your city. You wouldn’t think it, but check with your local government agency to see what your city will let you compost, like food scraps and what not. After all being cited for not composting within the legalities of your city isn’t very green. And when choosing the ideal composting system, think about your needs, how much waste you can you’d regularly add to it, how animal-resistant it is, and whether you can easily remove your ready to use compost. I know it’s a lot to think about before you begin, but trust me, it’s well worth the effort. In our next installment I’ll go ahead and talk about the science and art of composting – stay tuned!
*Referenced from Home Composting Made Easy by C. Forrest McDowell, PhD and Tricia Clark-McDowell, 2002.



