Compost

How to Make Compost Tea with Worm Castings

 

 

How to Make Compost Tea with Worm Castings

Simple Vermicompost Tea Recipe

What is compost tea?

Compost tea is a tea made from steeping (or brewing) compost instead of tea leaves. Your plants will love it. The nutrients and beneficial microbes in the compost diffuse into the water making liquid fertilizer for your plants. There are two ways to make compost tea with worm castings: the basic method (simple steeping) or the aerated, brewed version. This article will teach you a compost tea recipe and instructions for both compost tea brewing methods.

What is vermicompost tea?

Vermicompost tea is simply compost tea with worm castings. It is brewed using vermicompost (worm poop or worm castings) as your compost instead of compost from a regular hot compost pile .  Using your vermicompost to make worm compost tea is a great use of your nutrient rich worm castings. Not yet worm composting at home? Every gardener should learn how to make vermicastings, and raising worms are actually kind of fun and easy.

Basic Worm Compost Tea Recipe

To make a batch of basic compost tea with worm castings, all you really need to do is soak some vermicompost overnight in water. I prefer to use something as a makeshift tea bag because it makes it less messy but it is not necessary. Here is the basic worm compost tea recipe that I use.

▪Find something to use as a compost tea bag (old t-shirt, panty hose, cheese clothe, etc)

▪Fill your homemade tea bag with worm compost, around 4 cups and tie off the open end of the tea bag with rubber bands or strings.

▪Submerge the worm compost tea bag in a bucket of water. A 5 gallon bucket work best.

▪Let it sit overnight for at least 24 hours.   In the morning the water should be light brown.

▪Because the beneficial microbes in the worm compost tea will start to die off, water your garden first thing in the morning for best results.

▪Remove the worm compost tea bag from the bucket, cut it open and add the worm compost either to your garden, your worm compost bin or your compost pile.

Aerated, Brewed Worm Compost Tea Recipe

A Handful of Vermicompost

To brew a batch of aerated worm compost tea, you will do roughly the same procedure as the basic worm tea recipe except you will be introducing a sugar source and an aeration device.  The sugar and aeration wake up, feed, and increase the population of the beneficial microorganisms living in the worm compost, making this method the absolute best for your plants. Here is my aerated, brewed worm compost tea recipe:

▪Put roughly 4 to 6 cups of finished worm castings (without a tea bag) into a 5 gallon bucket. I never measure, just throw in a few handfuls of vermicompost.

▪Add 4 gallons of water (rain or well water is best because it is not chlorinated but city water will work).

▪Add 1 ounce of unsulfured molasses to provide a food source for the beneficial microorganisms living in the worm poop. You can use almost any sugar source here. NOTE: Adding a sugar source will increase beneficial microorganisms but it will also increase any harmful pathogenic microbes as well. If you suspect your worm compost contains harmful microbes, do not add molasses.

▪Stick the bubbler (airstone) end of an aquarium fish tank aerator, down to the bottom of the bucket and turn it on. Let it brew for about 3 days, stirring occasionally.

▪You may want to strain the compost tea before using.

▪For best results, use the brewed worm tea immediately.

▪Tip for even better results: Follow the worm compost tea recipe above, but add 2 cups of alfalfa pellets (rabbit food), for some extra Nitrogen in the worm tea brew.

How to Use Worm Compost Tea

Watering plants with Worm Compost Tea

Now that you have made a batch of compost tea with worm castings, try one of the below methods in your garden or home. If you have a large garden or many houseplants, worm compost tea can be diluted with water to cover more area. Check out these uses for compost tea:

▪Water your garden as you normally would

▪Water your houseplants

▪Use the worm compost tea to water seedlings or baby plants

▪Cover a whole plant with worm compost tea including the leaves. Many people believe that the beneficial microbes in worm tea help protect plants from diseases. A spray bottle works well. Be sure to strain the worm compost tea before adding it to the spray bottle.

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