Ezra and I immediately fell in love with the idea of vermicomposting, and you should too! Vermicomposting is a way of composting, meaning it breaks down waste and turns it into super rich material plants love. Although it is hard to miss the huge thermo compost piles here at Academy, the worm bin had gone unnoticed by be until this year. The inner workings of the two types of compost are vastly different. Thermo compost works because the piles become incredibly hot, but worms can’t survive in those conditions. Worms are a great way to produce rich, broken down organic matter. They aren’t terribly fussy, work quickly, can be both large scale and small scale, have little smell and attract fewer pests than other compost types.
The rich material produced by worms is called “worm castings.” The worms constantly eat organic matter and produce their weight in castings every single day, if they are in the conditions they like. Worms consume the organic matter such as food waste and paper, as well as a little “grit” to grind it all up inside them. This worm poop may not sound extraordinarily special, but it is. Worm castings have a whole list of benefits to plants, including:
-Many micronutrients and trace minerals that could otherwise be hard for plants to obtain.
-Help balance the pH of soil.
-Produce an enzyme that repels pests that could be harmful to your plants such as aphids, white flies, and spider mites.
-Have the ability to extract toxins and harmful bacteria from the soil.
Worm bins are a bit more tricky than other compost where you can throw your waste in a pile and ignore it for years, because the worms are rather intolerant of many things. You have to carefully control the temperature, between 55 and 75 degrees fahrenheit is ideal. Below 55 activity will slow down (so you get fewer castings), and above 75 will be uncomfortably warm and they may try to escape. They can’t do any animal products, oils, or citrus. They are also very sensitive to light. This may sound like they are picky, but they are actually super well adapted to their environment and tolerant of change such as flood or food shortage. Worms can survive completely submersed in water for days, until they need to eat. They can also eat their castings up to three times when no food is present! What they are most intolerant of is dryness and heat.
With this new found information, we set off to make the happiest worm bin for our Desert Oasis Garden. Under the shade of a tree in a large insulated fiberglass bin, our worms will soon thrive (hopefully). Layered with grit, leaves, cardboard, shredded paper, and food waste, they would soon begin to produce castings for our garden!