BROWN FRIDAY SALE: 20% off orders of $35 or more from 11/15 at 12pm to 11/30 at 11:59pm (eligible items only).

New Exclusive Product! Check out the new Myco Lid Pro™ for liquid culture applications!

Bulk orders and wholesale pricing available - contact us for inquiries!

Collection: Featured

Best-selling Brown Treasure products.

Willy's Blend Manure Substrate (5lb Bag)

Willy's Blend Manure Substrate (5lb Bag)

21 total reviews

Regular price From $39.99 USD

Regular price ~~$39.99 USD~~ Sale price From $39.99 USD
Unit price per
Myco Lid Pro™

Myco Lid Pro™

12 total reviews

Regular price From $14.49 USD

Regular price ~~$14.49 USD~~ Sale price From $14.49 USD
Unit price per
Sterilized, Mushroom Grain Spawn (2lb Bag)

Sterilized, Mushroom Grain Spawn (2lb Bag)

13 total reviews

Regular price From $14.99 USD

Regular price ~~$14.99 USD~~ Sale price From $14.99 USD
Unit price per
Willy's Blend, Manure-based, All-in-One Bag

Willy's Blend, Manure-based, All-in-One Bag

20 total reviews

Regular price From $39.99 USD

Regular price ~~$39.99 USD~~ Sale price From $39.99 USD
Unit price per
Casing Layer Substrate (1 Gallon)

Casing Layer Substrate (1 Gallon)

Regular price From $17.99 USD

Regular price ~~$17.99 USD~~ Sale price From $17.99 USD
Unit price per
Island CVG (4lb Bag)

Island CVG (4lb Bag)

2 total reviews

Regular price From $19.99 USD

Regular price ~~$19.99 USD~~ Sale price From $19.99 USD
Unit price per