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How to Make Your Own Worm Bins and Castings

Super Simple Worm Bins You Can Make

Shannon Black has it going on!

Few things are beneficial to good soil and compost than a healthy population of wiggler worms.

When we shared an article on vermiculture1) on the Gardens All Facebook Page, Shannon posted some great comments that sparked a lengthy Facebook conversation and her posting her pictures.

This may sound geeky but we love this kind of thing! Members of the Gardens All community sharing their knowledge, wisdom and enthusiasm for gardening.

Some of you have been doing all this longer than we have, bigger than we have and more than we have. So when we can share experience and expertise from amongst you, all the better!

That’s certainly the case with Shannon Black. Shannon loves worms and she’s created her own worm “farm” that’s serving her garden.


Here are excerpts from our Facebook conversation with Shannon Black:

Shannon: Love my worms… I have tons. I harvest them and made a ten gallon to feed them kitchen scraps. Then, I make my own homemade compost & worm castings tea for the garden.

Gardens All Excellent. Did you start by buying a box of worms? It’s pretty cool that you can actually buy worms on Amazon! Seems like that’s the best way to get a jumpstart on the worm population.

Shannon: First batch a couple years ago, I harvested from my compost pile. I supplement on occasion with a box from the nursery or cup from the bait shop. Just be sure to get “red wigglers” not regular earthworms. (Mostly just to vary the genetic lines a bit.)

“Making a worm bin is super easy.”

Shannon’s Worm Bins

Shannon bought two 10 gallon bins and made her “worm farm” for less than $10! She got her tubs from Walmart: Sterilite 10 Gallon Tote for just $3.97 each.

Lower Bin: I placed in two bricks on the inside towards each end. [Place diagonally opposite each other. These are to keep the 2nd bin from nesting completely].

Top Bin: I drilled tiny holes in the bottom, larger zigzag holes about 2-3 inches under the top edge, and some vent holes in the lid.

Top Bin Layers:

  1.  Shredded paper grocery bags, no ink, no glue portions
  2.  Worm “salad” scraps
  3.  Worms
  4.  Soil – 1-2″ loose layer to keep the fruit flies from honing in on exposed scraps

Adding New Food Scraps:
I use a small rake trowel to dig up one side to add scraps then push existing soil and castings back over it. Alternating each side each week since most worms concentrate on the prior week’s side

The lower bin catches the worm castings and “tea” that can be taken out to the garden for plants.

This DIY Worm “Factory”: Less than $10 to make.

Side view of completed DIY worm bin.

Shannon Black’s DIY worm bin. * Lower Bin – No holes: Place 2-4 bricks or empty plant pots in corners of the bottom bin to prop up second bin * Upper Bin – Drill holes in side and lid of upper bin
Top bin – vent holes in lid
Shredded grocery bags in Shannon Black's DIY Vermiculture set up.
Top Bin – 1st Layer: Shredded grocery bags.
Top Bin – 2nd Layer: Worm “salad” (scraps); 3rd Layer: add worms 4th Layer: add a loose layer of soil; top with holey lid.

That’s awesome! We’ve seen some really elaborate ones online as well as a video where a popular YouTuber created a similar system, but later reported that her worms all died! ?Bummer!

So, we really like how super simple Shannon made hers and how her worms are doing so well she plans to add more!

With this, it should be easy for you to get your worm factory going too! Or, if you’d prefer to buy it all ready-made, you can do that too.

Thanks for sharing your experience, Shannon!

To join the Gardens All Facebook conversation where you can post your comments for Shannon and others, you can access that specific thread here.2)

If you want more on worms, you may enjoy the video on the last page by Clint from Clint has a similar system to Shannon’s, and has a few other tips on how he’s managing his worm bin system, plus what to do about soldier flies and fruit flies from getting into your bins.

For a video on worm bins and other tips check out this video with Clint.

More on Building Your Own Worm Bins

Enjoy Clint’s tutorial where he provides a number of good tips he’s learned from direct experience, like Shannon. The best classroom is hands-on!

“Know your limit and grow within it.” Clint of

And… here’s that earlier article on Vermiculture and vermicompost.3)

And if you’re really wanting to dig in deeper on worm culture, you may enjoy this article on Backyard Garden Lover site.

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