{"id":24682,"date":"2026-01-26T15:12:55","date_gmt":"2026-01-26T23:12:55","guid":{"rendered":"https:\/\/extension.wsu.edu\/kitsap\/?page_id=24682"},"modified":"2026-03-18T10:57:21","modified_gmt":"2026-03-18T17:57:21","slug":"vermiculture","status":"publish","type":"page","link":"https:\/\/extension.wsu.edu\/kitsap\/backyard-composting-101\/vermiculture\/","title":{"rendered":"Vermiculture"},"content":{"rendered":"
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Vermiculture<\/h1>\t\t\t\t
“All the fertile areas of this planet have at least once passed through the bodies of earthworms.” ~ Charles Darwin<\/div>\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t
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What is Vermiculture Composting? <\/h2>\n\n\n\n

Vermiculture, or vermicomposting, is a composting method that uses worms \u2014 most commonly Red wiggler \u2014 together with grit and microorganisms they break down food scraps and other organic materials into a stable, nutrient-rich soil amendment known as worm castings. Vermicompost is preferable for household scraps since food scraps do not need hot composting to eliminate pathogens and has a higher nitrogen concentration for plants that need it: it\u2019s fundamentally pure worm manure.<\/p>\n\n\n\n

Vermiculture systems can be in-ground, where worms move freely between soil and composting materials, or contained in bins or tray systems that can be used indoors or outdoors. <\/p>\n\n\n\n

Why Choose Vermiculture<\/h2>\n\n\n\n

Vermiculture is especially well suited for managing household food scraps because worms efficiently convert everyday kitchen scraps into high-quality compost while requiring minimal space, equipment, and cost. Composting worms typically consume about 25\u201350% of their body weight in food per day. A practical rule is that 1 pound of worms can process roughly \u00bd pound of food scraps per day (about 3\u20134 pounds per week), allowing households to match worm population size to their food waste volume and scale over time.<\/p>\n\n\n\n

Worms like moderate temperature range of 55-77\u00b0F where they are most active and productive. They can tolerate temperatures between 39\u201390\u00b0F, but struggle above 90\u00b0F and can die if temperatures fall below 40\u00b0F or exceed 95\u00b0F.<\/p>\n\n\n\n

Because these systems operate in a small footprint and focus on food scrap processing, Vermiculture offers an efficient, accessible way to recycle organic waste into a valuable resource for gardens, landscapes, and container plants. <\/p>\n\n\n\n

Factors to Consider When Choosing<\/h3>\n\n\n\n