Worm farms



Worm Farm

Making a worm farm

A good bin should meet the following criteria:

worm farm


Composition: 30% to 50% recycled materials - Practice what you preach. Why use virgin plastics or new wood if you are teaching recycling? Some of the soft, pliable virgin plastics will leach out chemicals which will retard the worm's growth and reproduction in this type of bin. Ideally, the plastic will be constructed from recycled HDPE materials. HDPE is more durable and is very rigidly constructed.

tigers worms - compost worms

Aeration: Air vents on the sides and bottom of the bin - Earthworms require a lot of oxygen to be healthy. This is accomplished by allowing the air to pass from the very bottom of the bin through the bedding.

worms farms are great for kids at school

Moisture Content: 60% to 80% - Earthworms breath through their skin, but they do not have gills. Saturated (100% moisture) bins will cut off the oxygen and the weight of the water will pack all of the small air spaces in the bedding.  The worms will start bailing out over the sides or staying in and dying. One point that I would like to make is, redworms are mainly surface feeders and it is the top three or four inches of your bin that needs to be at about 80% moisture. At 80%, you can squeeze out a couple of drops of water just like a damp sponge.

worm farming nz

NOTE:Whether doing a large commercial bin or a small home/classroom bin, you must try to duplicate the native environment as closely as possible.

Critters : Those little gray or white things (mites) or those critters in the corners that are jumping in the air (springtails) are normal inhabitants and are NOT like bedbugs, head lice, etc.. But the ants can be a problem. The solution is to put feet on your bin and place a tray with water in it. This will keep out any critter that crawls, but then you have to deal with the fruit fly. At school, place a saucer of vinegar in the bin to attract and drown the fruit fly. At home, use flat beer or get one of the Bud frogs to do the job for you.


Our Worm Friendly Habitat is a simple, easy to use vermi-composting system that turns your kitchen waste into organic fertilizer/soil conditioner (castings) with the help of redworms. Setting up is as easy as shredding newspaper (or computer paper), adding a bit of water, and introducing the worms. After burying the kitchen waste in the newspaper, the redworms will eat the food, newspaper (called "bedding") and bacteria, turning everything into nutrient rich humus for use in gardens, lawns, orchards & house plants. Since vermicomposting can be done virtually anywhere, it has the added benefit of allowing you to create compost indoors during the winter and outdoors during the summer.

Now you can turn your household waste into "Black Gold" as worm castings, which is one of the best fertilizers on the planet!. Turn your kitchen scraps, yard waste and even newspapers into valuable fertilizer with the help of worms. Did you know that 1 pound of worms can eat and convert ½ pound of waste into valuable worm castings EVERY DAY?

Worm castings and vermicompost are more valuable than conventional compost in that the worms convert nitrogen and other elements into a form more usable by the plant. Also, the worm castings have a coating around the grains which allows the nutrients to "time release" into the soil. Visit your local nursery and see what they charge for this "Black Gold".

Q. What do worms do to improve soil?

Answer #1 . Worms make burrows and tunnels which enable water to penetrate to your plants' root system.

Answer #2 . Worms consume and digest their body weight every day, producing castings which are 100% natural, organic fertilizer. I refer to it as Black Gold.

Answer #3. Worms castings (manure) are:

- 5 times richer in nitrogen

- 7 times richer in phosphates

- 11 times richer in potash more than the average yard's topsoil!!!!!