Directions for Using Worm Castings

Below are some basic directions for using the worm castings.   These directions are adapted from the Oklahoma State University extension service.  The maximum shelf life of a bag of worm castings is about 6 months according to some literature.  It is important to keep the worm castings somewhat moist and not let them dry out, as it can kill the living microorganisms.  If the castings become too dry you can add a small amount of chlorine-free water.  It is also important to not store the castings in an air tight container as the worm castings need to breathe.

Directions for Use:
For raised beds: mix ½ to 1 inch of worm castings into 6 inches of soil.
As a mulch: Spread ½ to 1 inch of worm castings beneath growing plants out to the point where rain drips from leaves.
When planting seeds or transplanting new plants: Place ½ to 1 inch of worm castings in the bottom of the hole or row.
In potting mix: use 1/4 to 1/3 worm castings by volume.
As a liquid tea extract: Let a 5 gallon bucket of water sit in the open air for 24 hours to remove chlorine.  After the water is free of chlorine add 1 quart of castings.  Mix well for 3 minutes.  Apply the liquid to the garden or potted plants.  You can also apply the liquid to the leaves of the plant.  Use the liquid tea extract within 1 day of making it and do not store in a container for more than 1 day due to increasing odors.

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