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Worm Composting

Worms can turn kitchen waste (PDF, 133 K) into a high-quality compost for your garden. Worm compost (vermicompost) is rich, so you can use less than you would of regular yard waste compost. Worm compost bins, such as the E-ZWorm Composting Bin (PDF, 700 K), can be purchased locally at some nurseries and garden centers, or you can make your own worm bin out of a large plastic tub.

To make a worm bin:

  1. Buy a tub with tight-fitting lid.
  2. Make small air holes in the sides using an ice pick or small drill.
  3. Drill holes in the bottom for drainage.
  4. Add shredded newspaper, kitchen scraps, and worms.
  5. Learn how to manage your worm bin kitchen waste (PDF, 133 K)

Worms and Worm Bins

King County Solid Waste does not endorse or recommend any of the organizations listed below. Please contact the organization before visiting or ordering any materials.

Worm Composting Supplies





3 in 1 Worm Ranch

Worms, Worm Tea, Worm Castings, Tower Home Worm Farms

Poulsbo, WA


Auburn Sports and Marine


810 Auburn Way N. Auburn, WA


Bainbridge Gardens

Worm bins and composting systems

9415 Miller Rd., Bainbridge Island, WA


BugaBay Company

Worm Composting Systems, Red Worms, worm composting information

3169 Fox Spit Rd., Langley, WA 98260


Cascade Sales

Worms and worm bins

3316 E. Smith Rd., Bellingham, WA 98226

360-592-5970 or
360-592-0948 (FAX)

Dinkelman Worm Farm

worm bins, red wiggler composting worms, vermicompost

47402 228th Ave. SE, Enumclaw, WA 98022


Elderberry Earthworm Farm

Worms, worm castings, oak worm bins (will ship 2-3 day priority via U.S. mail in USA)

5245 Lola Lane, Langley, WA

360-321-1485 or

Kitsap E-Z Earth Supplies

Worms, worm castings, worm tea, worm factories

16952 Clear Creek Rd., Poulsbo, WA


Molbak's Nursery

Worm bins and worm bin accessories (worms can be ordered for home delivery)

13625 NE 175th St., Woodinville, WA


Northwest Wigglers

Red worms for composting, worm bins, books, instructions and advice

11508 128th Dr NE, Lake Stevens, WA 98258


Red Worms

Worms and worm bins

Bellevue, WA


Seattle Tilth Association


4649 Sunnyside Ave. N., Seattle, WA


Sky Nursery

Worms, worm bins and accessories, and composting items

N.E. 185th St. and Aurora Avenue N., Seattle, WA


Smith and Hawken

Worm bins

12200 Northup Way, Bellevue, WA


Stone Way Hardware

Worms (will ship via U.S. mail or UPS)

4318 Stone Way N., Seattle, WA


Yelm Earthworm & Castings Farm

Red Wiggler Worms, Worm Factories®, Worm Castings, Worm Tea and brewers, Deluxe Garden Blend, Soil amendments

14741 Lawrence Lake Rd SE Yelm, WA 98597

Toll free: 877-339-6767

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Updated: Oct. 22, 2015

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