Oregon Grown · Certified Organic Since 2006
Yamhill County Mushrooms logo
Yamhill County Mushrooms
Est. 1985 · Willamette Valley
Wholesale
Rows of fresh white mushrooms growing in a darkened Oregon barn
Oregon Grown Since 1985

Grown in the dark.
Packed in purple.

Family-owned organic mushroom farm in the Willamette Valley.

1985
Founded
5.5M
Lbs / year
70+
Employees
20
Years organic
Wide view of the Yamhill County Mushrooms farm — barns, compost yard steaming, Willamette Valley trees beyond
7246 NW Lilac Hill Rd · Yamhill, Oregon
Our Story

Three generations.
One farm.

Bill Darm started it in 1985. His son Bob bought it a few years later and runs it today with Leo Perez and his grown kids.

We make our own compost on site. It's loud, it's warm, and it smells like a real farm. Then the compost goes into darkened barns where the mushrooms do their thing for a couple of weeks.

Two varieties we're known for: crimini and portabella. Plus whole and sliced whites when the beds call for them.

— Bob Darm, owner
Wooden grow racks stacked high inside a Yamhill County Mushrooms barn
Cat loader moving steaming compost inside the on-site compost barn
Our Mushrooms

One species. Three stages. A few specialties.

White, crimini, and portabella are all Agaricus bisporus — the same mushroom at different points in its life. We also grow shiitake, oyster, and chanterelle.

Beds of white button mushrooms ready to harvest

Whites

Buttons · mediums · jumbos · sliced

The classic. Mild, versatile, shipped the day we pack.

Stacked purple YCM cases of fresh whole crimini mushrooms

Crimini

Whole · sliced · organic available

Crimini is the brown version of the same mushroom. Earthy, firm, a step deeper in flavor.

Oregon Tilth Certified Organic USDA Organic Organic
available
Fresh portabella caps in a purple YCM branded case

Portabella

Whole caps · sliced · organic available

Crimini that kept growing. Big, meaty, ready to grill.

Oregon Tilth Certified Organic USDA Organic Organic
available
Specialty mushrooms from Yamhill County Mushrooms

Specialty

Shiitake · oyster · chanterelle

Small runs in 5lb cases for chefs who want something different.

A note on naming: Agaricus bisporus is one species at different maturity stages — harvested young it's a white button, harvested at its brown-capped stage it's crimini, and left to fully open it becomes portabella. Our brown varieties (crimini + portabella) are certified organic by Oregon Tilth. Whites are grown conventionally to food-service standards in the same barns, same compost.

Full product list

43 SKUs · year-round

10 lb cases · foodservice

  • Button
  • Regular
  • Large
  • Mature
  • Jumbo / Kabob
  • #1 Thin Sliced
  • #1 Thick Sliced
  • #2 Thin Sliced
  • #2 Thick Sliced

5 lb cases · foodservice

  • Button
  • Regular
  • Large
  • Jumbo
  • #1 Thin Sliced
  • #1 Thick Sliced

Crimini · 10 lb & 5 lb

  • 10 lb Organic Criminiorganic
  • 10 lb Jumbo Crimini
  • 5 lb Organic Criminiorganic
  • 5 lb Small
  • 5 lb Medium
  • 5 lb Large
  • 5 lb Mature
  • 5 lb Thin Sliced #1
  • 5 lb Thick Sliced #1

Portabella · 5 lb & 8 oz

  • 5 lb Organic Portabellaorganic
  • 5 lb Small
  • 5 lb Medium
  • 5 lb Large
  • 5 lb Random
  • 8 oz Overwrap Whole Capsorganic
  • 8 oz Overwrap Slicedorganic

Retail cups · 12 × 8 oz case

  • Whole White
  • Sliced White
  • Whole Crimini
  • Whole Organic Criminiorganic
  • Sliced Crimini
  • Sliced Organic Criminiorganic

Cello 4 × 40 oz

  • Medium Cup
  • Sliced Cup
  • Crimini Cup

Specialty · 5 lb

  • Shiitake #1
  • Shiitake #2
  • Oyster
  • Chanterelle
Oregon Tilth certified organic (OT-011161) on all crimini and portabella SKUs marked organic. Whites are conventionally grown in the same barns to the same food-service standards. USDA NOP · US/Canada Equivalence.
Where to Buy

Find our mushrooms.

Mostly sold wholesale, but a handful of retailers carry our retail cups and trays.

A Yamhill County Mushrooms refrigerated truck at the loading dock, backed up to the packing barn
Delivered by our own refrigerated fleet

Retail stores

New Seasons Market
Portland metro — retail cups & trays
Chef's Store
Formerly Cash & Carry / Smart Foodservice — wholesale-to-public

Wholesale & foodservice

Sysco Portland
Distribution across OR / WA / N. California
Pacific Coast Fresh
Regional produce distributor
Pastini
Portland restaurant group
Rogue Produce
Southern Oregon CSA
Oregon State University
Campus foodservice, Corvallis
Their mushroom quality is phenomenal.
— Troy Thomas, Sysco Portland
Visit or Call

Yamhill. 35 minutes from Portland.

Tours by arrangement. Call ahead and we'll show you around.

Address
7246 NW Lilac Hill Rd
Yamhill, OR 97148
Certifications
Oregon Tilth Certified Organic USDA Organic
Oregon Tilth Certified Organic
OT-011161 · USDA NOP · US/Canada Equivalence

Driving directions →

We're hiring.

Pickers, drivers, seasonal help. Paid on time. Home every night. Profit share and health insurance after probation.

See open roles →