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Specialty culinary mushrooms grown in Los Angeles
Los Angeles, CA  ·  Specialty mushroom growers

Rare culinary
mushrooms, grown
in Los Angeles.

We grow Black King Oyster, Chestnut, and specialty fungi for chefs, farmers markets, and wellness buyers across LA. Straight from our hands to yours.

Explore
Black King Oyster· Chestnut mushrooms· Specialty fungi, Los Angeles· Wholesale to chefs· Santa Monica Farmers Market· Pasadena Farmers Market· Harvested to order· No distributor· Black King Oyster· Chestnut mushrooms· Specialty fungi, Los Angeles· Wholesale to chefs· Santa Monica Farmers Market· Pasadena Farmers Market· Harvested to order· No distributor·
Why we do this

Mushrooms aren't plants,
they're something else.

Field Theory was born from lineage and from an unshakeable belief that people deserve better.

We exist to make sure every person who eats what we grow gets exactly what their body needs. Honestly. Without compromise. The way food was always meant to be.

"Mushrooms aren't just food. They're a framework for how to grow, connect, and build something that lasts."
Field Theory, Los Angeles
What we grow

Current varieties, grown in Los Angeles

Black King Oyster, Chestnut, and a third variety arriving this season. All grown in controlled indoor environments, harvested to order, sold direct.

01
Black King Oyster
Pleurotus eryngii var. ferulae
Meaty, umami-forward. The chef's mushroom.
Available nowWholesaleAt market
▾
For chefs
Dense caps that hold up in a hot pan and develop a deep, savory crust. Built for searing, roasting, and any preparation where texture actually matters.
For wellness
High in beta-glucans and antioxidants. High protein, low calories. Clean substrate, no pesticides, full documentation on request.
02
Chestnut
Pholiota adiposa
Firm, nutty clusters. Excellent raw or roasted.
Available nowWholesaleAt market
▾
For chefs
Firm, crunchy clusters with a nutty, warm flavor. Great raw in salads, or roasted in a hot pan until the edges go golden.
For wellness
High in antioxidants and dietary fiber. Mild enough to work across a wide range of functional food applications.
03
Third variety
Shiitake, Lion's Mane, or Pioppino
Announcing this season. Sign up to hear first.
Coming soon
▾
We're picking the third variety based on what our chefs and market customers actually ask for. Sign up below and you'll hear first.
How we grow

From the grow room
to your kitchen.

Every mushroom we sell was grown in a controlled environment, harvested to order, and delivered direct. No distributor, no cold chain gap, no mystery.

01
Controlled environment
Every room dialed to exactly what each species needs. Humidity, CO₂, light. No pesticides. Substrate information on request.
02
Harvested to order
Chefs tell us their schedule, we time the flush around it. Market customers get mushrooms harvested the same morning.
03
Direct, always
You're buying from the person who grew it. No cold chain gap, no mystery, no middleman.
Work with us

Who do we grow for?

We supply chefs, home cooks, and wellness companies directly. Each relationship is a little different. Tell us what you need.

For kitchens
Chefs & restaurants
Wholesale pricing, harvest-to-order scheduling, same-day delivery. No distributor markup.
For home
Home cooks
Find us at farmers markets in Santa Monica and Pasadena, or order direct by email. No minimum.
For products
Wellness & brands
Clean cultivation, full substrate transparency, consistent weekly supply. Documentation on request.
Work with us

Ready to start?
Let's talk.

Whether you're a chef building a menu, a home cook chasing freshness, or a brand sourcing clean ingredients. We want to hear from you. We follow up within 24 hours.

We work directly with LA chefs, no distributor, no markup. You tell us your schedule, we build the harvest around it.
Harvest date and substrate disclosed with every order
Same day or next morning delivery after harvest
Wholesale pricing for consistent weekly orders
We're in Los Angeles, close enough to actually know you
Restaurant name
Email
What do you need?
Thanks, we'll be in touch within 24 hours.
Find us at farmers markets across Los Angeles. We harvest the morning of market day. Out of the grow room at 3am, on your table by 8.
Santa Monica Farmers Market, Wednesdays 8am to 1pm
Pasadena Farmers Market, Saturdays 9am to 1pm
Direct orders by email, no minimum
Your name
Email
You're on the list. We'll reach out before market.
Controlled environment cultivation, full substrate transparency, no pesticides. Same strain, same conditions, every batch.
Full grow documentation available on request
No pesticides, substrate fully disclosed
Same strain, same conditions, every batch
Company
Email
What are you sourcing?
Thanks, we'll follow up within 48 hours.
Grow status, updated weekly

We update this by hand every week. If we're at market, we harvested that morning.

3days
Since last harvest
48lbs
Yielded this week
2
Active varieties
Sat
Next market day
What people are saying

From chefs and home cooks across LA

★★★★★
"Best Black King Oysters I've cooked with in five years. Dense, consistent, and they actually taste like something."
Marco R.
Executive Chef, Los Angeles
★★★★★
"Went back three Saturdays straight. Never had mushrooms this fresh, the flavor is on another level."
Jamie L.
Home cook, Pasadena
More coming as we grow. Be one of our first.
Find us at market

Los Angeles farmers markets

Out of the grow room at 3am. On your table by 8.
Santa Monica Farmers MarketWednesdays · 8am – 1pmWeekly
Pasadena Farmers MarketSaturdays · 9am – 1pmWeekly
More markets comingSan Gabriel Valley, Greater LA2025
What we grow

Specialty culinary mushrooms including Black King Oyster (Pleurotus eryngii), Chestnut mushrooms (Pholiota adiposa), and seasonal varieties grown in controlled indoor environments in Los Angeles, California.

Black King Oyster mushrooms in Los Angeles Chestnut mushrooms in Los Angeles Wholesale specialty mushrooms for Los Angeles chefs
Where to find us

Field Theory is based in Los Angeles and supplies chefs and home cooks across Los Angeles County, Santa Monica, Pasadena, and surrounding areas.

Santa Monica Farmers Market, Wednesdays Pasadena Farmers Market, Saturdays Buy specialty mushrooms near Los Angeles
Get in touch

Field Theory · Los Angeles, CA
hello@fieldtheoryfarm.com
fieldtheoryfarm.com

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