Small Composting Worm Bins

Here’s a great way to turn your kitchen scraps into “black gold”. A miniature worm farm! We had a dig on the interwebs and found this easy and practical design.

New Arrivals

All credit goes to Adrian for his wheelie worm bin design, thanks mate! Everything you need to know about constructing your own wormfarm is on his blog.
Following is our attempt at making our own version for Ingadi.

Em found the exact same bins that Adrian used for $12 at Bargain City. We certainly got off to a good start!  After a trip to the local hardware store the construction could finally begin.

Worm Bin Parts

Screw two batons into the sides of the bin to support the false bottom frame.

Cover the frame in mesh to keep the worms from falling into their own “tea”. We first used some shade cloth however ended up with a durable insect mesh instead as the cloth disintegrated and worms don’t swim that well!

False Floor Support

Install a tap at the bottom of the bin as low as possible in order to completely drain the reservoir.

Add a small access panel at the front to get to those lovely worm castings and also to provide ventilation in the summer.

That’s pretty much it. The final thing left to do is to add a few layers of wet shredded newspaper, compost and then your worms. Find a warm spot out of direct sunlight to store your bins.

Access Panel

Composting worms are hardly fussy about what’s on the menu so we feed them any available kitchen scraps, but we do avoid citrus peels, onions, dairy products, starches and meat. They’ve been munching away at an amazing pace and we can hardly keep up with feeding them! Fortunately there’s a steady supply of banana peels donated by my co-workers (with or without their knowledge!).

The worm castings are rich in all the good bacteria that annuals need, so we mix that with potting soil as a medium to start our seedlings in. It also diversifies your soil’s microbial population and increases water retention which is a big plus in the Australian climate. This stuff is potent!
Our bins have been extremely successful, probably because our worms are on a permanent buzz from the used coffee grounds we’ve been feeding them! Too much used coffee grounds do tend to make the worm bin quite acidic, however balance is easily restored by mixing in a handful of garden lime.

Completed Worm Bins

As with everything else in life, it’s all about maintaining the balance! Hope you enjoy brewing your own worm tea and your plants would love you for it, but please remember that worm tea is not of the drinkable kind 😛


~ by Jake on July 15, 2013.

2 Responses to “Small Composting Worm Bins”

  1. This will be my next ‘project’, so I can introduce them to my compost and reinvigorate my poor garden soil .

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