Tub Earthworms (150-300 Worms in various life Blue 1/2 cup

Earth worms, as they cultivate and feed, swallow great quantities of soil, digest it, extract its food value and expel the residue as worm castings. These worm castings are 5 times richer in the nutrients necessary for maximum plant growth and production than the soil they ingested. 

It is always helpful for the worms to add compost to the soil since they are constantly looking for organic material to eat and convert to castings. Almost any kind of plant waste or food waste can be either put directly into the soil or broken down first in a compost pile or container and then added to the soil. This will significantly increase worm reproduction and speed up soil improvement.