Worm Castings - home worm farm bin - worm casting tea

This year I discovered access to a large amount of night crawler worm castings on my property. I will be using that for the rest of the season, but I want to be able to use the castings in the winter grows as well. So, I've decided to build a simple indoor worm farm that will go into the grow room.

I found some very detailed and excellent information in regards to using Worm castings for your plants, and getting a great tea from it to feed the plants. In addition, a nice simple homemade worm bin post.

The site is called "World of Worms", or world of worms dot com. You know how to put that together. ;)

The "tea" is actually called "Leachate". It is not the same as a compost tea.

A personal note from me, you will want to use the liquid as soon as you can. Do not leave it sitting around without aeration of some sort or it will go anaerobic on you and start to develop bacteria and smell quite bad. I wouldn't want that in my buds....
If you have ever smelled stagnant water outside, that's what happens. It's where mosquito larvae begin in addition to other critters.

I have collected rainwater in buckets for a few years. If I leave those buckets unattended for two days or more, the larvae are there.

Here's some information and a process for making a worm bin to harvest castings and for getting tea out of the same bin:

Wormcastings Usage:

Using too much wormcast at any one time can stunt plant growth.

It has been studied what the optimum ratio of wormcast to potting soil is. Researchers potted plants starting in different ratios of cast to soil, and found the plants with the optimum growth were planted in a cast:soil ratio of 1:4, or 75% soil. However they have shown that even 10% of wormcast shows significant difference in plant growth.

Once the percentage of wormcast is over 40%, plant growth performance is stunted and may even appear worse off than having no wormcast at all.


Simple indoor Worm Farm from a rubbermaid or other tote:

Get a 25-36 gallon Rubbermaid Tote, drill some 3/16 or 1/4 holes in the lid and sides not lower than 6 from the base of the bin and PLEASE do not drill any holes in the base.

Drill a 3/4 hole near the vertical base of one end of the bin, set it on something that will give it a slight incline for drainage of your "tea", install a valve of some sort into the hole (or don’t, but leave it “open” if you do), set a mesh bag of gravel inside to block this hole which will serve as a filter.

Then add the customary start up stuff some garden soil, lots of paper and cardboard shreds and kitchen food waste, stir everything up and then add at least a pound (1000) of Red Wigglers or whatever earthworms you choose.

Give your worms a week or so to adjust to their new home, then start pouring from 2 to 10 gallons of water over it daily and catch it out the drain hole for use in watering your garden plants.

As time goes on, this “unprocessed worm tea” will become better and better fertilizer as it will be dissolving the increasing amount of worm poo, pee, sweat, etc. and creating the perfect liquid food for your garden.

I have been using this for years with no addition of anything but household waste and my plants just seem to love it. I also occasionally take out some handfuls from the worm bin as it fills up and distribute to my various garden spots and containers.

Leave the worm bin open-topped except in extreme cold to let the spiders and lizards jump in and eat whatever flies and gnats might try to invade.
If you try to close and control everything, you could cause yourself trouble, as this is not nature’s way.

This large volume of water poured through the worm bin daily washes away any possible salt or other problem buildup and doesn’t hurt the plants either as excess of everything is just drained away through the hole in the base of the container or down into the soil — nature’s way.

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Author
Lady Cannafan
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