Using Compost and Worm Castings to Build Healthy Soil

By Delta Worms | August 2, 2026
Herb garden after applying compost and worm castings beneath a layer of mulch

Today was a productive soil-building day at the new Delta Worms property in Oakley. We are using compost and worm castings to begin restoring two areas: the front lawn and Robin’s new herb garden. The landscaping here has been neglected, and our sandy soil dries quickly in the summer heat. Rather than reaching first for…

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Garden Mulch: One Thing Every Great Garden Has in Common

By Delta Worms | July 15, 2026
Cherry blossoms framing the Washington Monument during spring bloom in Washington, D.C.

Garden Mulch: Four Famous Gardens One Common Secret. Garden mulch is one thing every great garden has in common. This year I visited several famous gardens—including the U.S. Capitol Rose Garden, Hearst Castle, and the Ronald Reagan Presidential Library—and every one of them used generous layers of mulch. Each garden is unique. Some receive plenty of…

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