We may receive a commission on purchases made from links. It may be hard to wrap your head around the garden value of worm castings — the waste produced by lowly earthworms. They're collected from ...

Master Gardener Larry Steele holds red worm casting Lynn Ke.jpg Master Gardener Larry Steele holds a handful of hardworking red worms, which turn kitchen waste into nutritious castings. (Lynn Ketchum) ...

Many gardeners rely on compost to help improve their soils. Taking compost a step further, some gardeners use worms to break down the compost even more. Vermicomposting, or worm composting, uses red ...