Worm castings contain nutrients from the food they digested, which is good for the soil and the plants that grow in it. In nature, worms burrow through the ground and leave the castings behind ...

I wanted to compare the natural fertilization power of worm castings—euphemistically referred to as “ black gold ”—against the ostensible fertilization benefits of the in-home food recyclers.

You can also create a liquid fertilizer, delightfully called worm tea, by soaking worm castings in water. Worm tea can give a boost to house plants or a garden.

Red-worm manure, also known as castings, create a rich compost that not only adds nutrients to the soil, but also improves its structure.

Oregon State University Extension Service master gardener Larry Steele recommends the rich nutrition of red-worm manure, also known as castings.

Red wiggler worms break down food waste at the Arizona Worm Farm, located near Phoenix's South Mountain, to promote sustainability.

Red wiggler worms break down food waste at the Arizona Worm Farm, located near Phoenix's South Mountain, to promote sustainability.

Does your worm farm smell, or are you worms rushing to escape it? We clear up some misconceptions to help you make the most of your worm farm.

As another way to reuse materials, Grey Bears sells the worm compost in its thrift store. “These worm castings can be used as a soil amendment,” said Development Manager Kayla Traber.