Building Earthworm Populations in Sandy New Jersey Soil

Sandy soil in Ocean County, NJ lacks the organic matter earthworms need. Here's how to turn it into a worm haven.

Feed the Soil Food Web

• Grass clippings (from untreated lawns only).
• Oak leaves – shredded, applied as mulch.
• Starbucks coffee grounds – free, worm candy, slug repellent.
• Aged manure – cow, horse, chicken; diverse sources.
• Humus/compost – homemade or municipal.

Application Method

Spread amendments 2–3″ thick. Do not rototill. Lightly fork in or let worms incorporate naturally. Tilling destroys worm burrows and soil structure.

Compost Tea Boost

Brew aerated compost tea (recipe available) and apply monthly to accelerate microbial colonization.

Key Species

You want Lumbricus terrestris (nightcrawlers) and Aporrectodea spp.—deep burrowers that mix organics into mineral soil.

Timeline

Apply amendments 2–3 times/year. In 2–3 seasons, your sand will be living loam.

Patience and organics—worms will do the rest.