Mushroom Grain Spawn - Customize Your Own 10-Pack ($22.50/bag)

Note for Newcomers: Grain spawn is sterilized grain that has been inoculated and fully colonized with mushroom mycelium (the root-like structure of a mushroom. You can think of it like a seed for mushroom growing). It’s used to transfer specific strains of mycelium into a larger growing material, such as straw or sawdust, where the mushrooms will actually develop.

Please note: This is not a grow kit, but a starter ingredient used in the mushroom cultivation process.

Blue Oyster (PO-CNS-N) (Pleurotus Ostreatus)

Difficulty level	2
Origin of culture	Cap N Stem (USA)
Incubation time	12-14 days
Storage	Refrigeration Required
Weight per Bag	5 lbs
Weight per Case of 10	52 lbs
Dimensions of Case	19.5W x 16 L x 11H

 A fast-growing and vigorous strain known for their stunning blue-gray caps that fade to silver as they mature. Ideal for both beginner and experienced growers, they thrive on a variety of substrates such as straw, sawdust, and coffee grounds. This spawn produces large flushes of delicately flavored mushrooms with a firm, meaty texture.

Lion's Mane HE-CNS-N (Hericium Erinaceus)

Difficulty level	2
Origin of culture	Cap N Stem (USA)
Incubation time	8-16 days
Storage	Refrigeration Required
Weight per Bag	5 lbs
Weight per Case of 10	52 lbs
Dimensions of Case	19.5W x 16 L x 11H

Known for their cascading, icicle-like spines and rich, seafood-like flavor, Lion’s Mane mushrooms are a favorite among chefs, home and large scale growers, and natural health enthusiasts alike. HE_CNS produces dense, club-like fruits with small spines and a high resistance to bruising from handling and cold storage. Slower growing but produces large, high weight fruits.

Oyster Golden PC-MM-22 (Pleurotus Ostreatus)

Difficulty level	2 out of 4
Origin of culture	Cap n Stem
Incubation time	7-14 days
Storage	Refrigeration Required
Recommended Substrate	Versatile
Weight per Bag	5 lbs
Weight per Case of 10	52 lbs
Dimensions of Case	19.5W x 16 L x 11H

Smaller, delicate, bright yellow caps, rapidly fruiting variety. Produces multiple flushes. Prized for its beautiful bright color and nutty flavor. 

Chestnut PA-CNS (Pholiota Adiposa)

Difficulty level	3
Origin of culture	Cap N Stem (USA)
Incubation time	3-4 weeks
Storage	Refrigeration Required
Weight per Bag	5 lbs
Weight per Case of 10	52 lbs
Dimensions of Case	19.5W x 16 L x 11H

Chestnut (PA-CNS) is a high-performing, reliable strain of Pholiota adiposa, selected for vigorous colonization and excellent yield potential. Known for their stunning amber-brown caps and delicate white stems, Chestnut mushrooms offer a mildly nutty, earthy flavor and firm texture.

Pohu Oyster P0-02 (Pleurotus Ostreatus)

Difficulty level	2
Origin of culture	Field and Forrest Products
Incubation time	3 weeks
Storage	Refrigeration Required (1°C ideal)
Weight per Bag	5 lbs
Weight per Case of 10	52 lbs
Dimensions of Case	19.5W x 16 L x 11H

Known for its rapid growth and high yields. This versatile strain produces thick, white to light grey caps with excellent texture and mild, savory flavor. Delicate caps must be handled with care. 

Black Pearl Oyster PO-09 (pleurotus ostreatus)

Difficulty level	2 out of 5
Origin of culture	North Spore
Incubation time	18-22 days
Storage	Refrigeration Required
Recommended Substrate	Master Mix
Weight per Bag	5 lbs
Weight per Case of 10	52 lbs
Dimensions of Case	19.5W x 16 L x 11H

This vigorous species produces dense, meaty clusters with dark caps and thick stems.

Italian King Oyster PE-ITAL (Pleurotus eryngii)

Difficulty level	4 out of 5
Origin of culture	ItalSpawn
Incubation time	3 weeks
Storage	Refrigeration Required
Weight per Bag	5 lbs
Weight per Case of 10	52 lbs
Dimensions of Case	19.5W x 16 L x 11H

A variety of King Oyster known for its substantial, entirely edible stem and mild savory flavor. Is a slower growing oyster and requires a more advanced level of growing experience due to precise growing requirements.

Pioppino AA-CNS (Agrocybe Aegerita)

Difficulty level	3 out of 5
Origin of culture	Cap n Stem
Incubation time	18-22 days
Storage	Refrigeration Required
Recommended Substrate
Weight per Bag	5 lbs
Weight per Case of 10	52 lbs
Dimensions of Case	19.5W x 16 L x 11H

Produces even, medium sized fruits and commercial grade yields of attractive brown-capped clusters with slender stems. Grows best on hardwood substrate mix. Is a delicate mycelium and therefore has a higher difficulty level. Is fast growing and prized for its rich, nutty flavor and meaty texture.

 Hungarian Grey Oyster (HGO-3015N) (PleurotusOstreatus)

Difficulty level	2
Origin of culture	Amycel (USA)
Incubation time	12-14 days
Storage	Refrigeration Required
Weight per Bag	5 lbs
Weight per Case of 10	52 lbs
Dimensions of Case	19.5W x 16 L x 11H

The Hungarian Grey Oyster is a robust and cold-tolerant strain of Pleurotus ostreatus, prized for its dense clusters, smoky-grey caps, and rich umami flavor.

With a high market demand, Shiitake (Lentinula edodes) is a prized culinary mushroom known for its rich, savory flavor and meaty texture—perfect for stir-fries, soups, and grilling. Both strains produce high yields and uniform caps.

Maitake GF9827-5 (Grifola Frondosa)

Difficulty level	5 out of 5 (Experimental)
Origin of culture	Mycelia
Incubation time	6-8 weeks
Storage	Refrigeration Required
Recommended Substrate	Sawdust/Hardwood mix
Weight per Bag	5 lbs
Weight per Case of 10	52 lbs
Dimensions of Case	19.5W x 16 L x 11H

Also known as "Hen of the Woods," Maitake thrives on hardwood substrates and produces beautiful, clustered fruiting bodies with a rich, earthy flavor. Considered an "advanced" species and requires an experiences grower. Excellent shelf life. 

Difficulty Levels 

 

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