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.

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

Build a DIY worm farm and learn vermicomposting basics by adding worms to your composting process to create a nutrient-rich fertilizer for your garden.

Worm castings can be used as a biologically-active, slow-release fertiliser for pot plants and your garden. And of course, you'll have lots of worms.

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

Like cellulose, it is not easily degraded and decomposes slowly. As a worm digests its food, 48 different bacteria assist in the process and they remain in the excreted 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.