Worm Castings and Tea Resources in Southern California

At the Los Angeles Worm Farm Collective, the process begins with composted horse manure.

Spreading dried leaves for the worms to compost.

Distributing worms onto new food in bed.

Giving the worms some water to keep them and the bedding moist.

Covering the bed to keep the bedding and worms dark and moist, but with ventilation.

Shade cloth shields the bed from direct sun.

The harvest process begins with sorting worms from the bedding.

Sifting the casting-rich bedding.

Making sure all the worms are out of the sifted castings.

Storing the castings for sale.

The Los Angeles Worm Farm Collective crew.

     One of my subscribers asked for a source of worm castings in bulk, so I sent out a query to my subscriber list asking for recommendations.  Thanks to everyone who provided some leads!
     I contacted each of the sources and/or constructed the list below from their websites.  However, I’ve indicated which sources haven’t yet responded and so I consequently can’t confirm the information provided by a subscriber or the website. 
     For the full information I gathered, see the spreadsheet on my website under Weblinks – http://www.gardeninginla.net/web-links.html - at the bottom of the righthand column.  I’ll post updates of the list as I receive new information.
     I visited the Los Angeles Worm Farm Collective during one of its workdays and talked with the enthusiastic members.  Keshy Jeong, was kind enough to take these pictures of the process.
 
Worm Castings and Tea Resources in Southern California (in alphabetical order)
 
Anna Marie Carter
Los Angeles
[email protected]
Castings in 20, 50, 100 lbs. and bulk orders.  Teas in 5 gallons and up.
 
Compost Worms and Bins (no response)
Glendale
[email protected]
818-472-2593
 
Da-Le Ranch (no response)
Lake Elsinore
[email protected]
951-657-3056, 518-206-2691
 
Los Angeles Worm Farm Collective
Norwalk and Atwater Village
[email protected]  
http://www.lawormfarmcollective.com/
Castings $5/gallon or $1,000/cubic yard. 5-50 gallon quantities can be picked up in Atwater (in Northeast LA near Glendale), preferably on the 3rd Sunday morning of the month. Delivery with an additional fee may be possible depending on the location.  
 
Mark LeGrand (no response)
[email protected]             
310-617-5389
 
Organic Solution (no response)
Camarillo            
[email protected]          
805-384-9020    
http://organicsolution.com/       
Castings, 6 qt, $14.95, and larger quantities.  16 Where To Buy locations in Southern California.
 
Rainbow Mealworms (no response)
Compton
[email protected]
800-777-9676
http://www.rainbowmealworms.net/mealworm-castings/
5 lb, $16.97, free shipping
 
The Worm Wrangler
Ruby Rehder
Menifee
[email protected]
951-679-5213
Castings in 3, 5, 10, 20 lbs. at $1 per lb.
 
Triformis Corporation (no response)
Los Angeles
[email protected]
888-469-6767
 
VermisTerra Organic Soil Amendment (no response)
https://vermisterra.com/
VermisTerra Earthworm Castings, 10 lb, $35.99.  Earthworm Casting Tea, 1 quart concentrate, $26.99.  Larger quantities available.
 
Whittier Fertilizer (no response)
Pico Rivera
562-699-3461
http://whittierfertilizer.com/products/
Website information includes no prices or quantities.

Yamada Company (no response)
Gardena
310-327-5668
According to a subscriber, Yamada sells castings and many other garden products, and is generally “something like 40% less than you'd pay most anywhere else. For example, Grow More Seaweed Extract, one quart, is, as I recall, $11.99 at Armstrong and $12.95 at OSH. At Yamada, $5.95.”