🚚 Free Worldwide Shipping on All Orders!Shop Now

Home Shop Cart Account

Shop
Indoor Growing
Outdoor Growing
Spawn & Cultures
Wellness & Food
Books & Merch

Store

Grain, Substrates & Amendments

Something went wrong

Store Account Cart

© 2026 Something went wrong. All rights reserved.

Grain, Substrates & Amendments | Something went wrong

NEW

Organic Sterilized Grain Bag with Injection Port

$22.99

-70%NEW

‘Boomr Bag’ Manure-Based Sterile Mushroom Substrate

$28.99

$8.70

-70%NEW

‘Wood Lovr’ Organic Hardwood-Based Sterile Mushroom Substrate

$28.99

$8.70

-70%NEW

8-Pack ‘Wood Lovr’ Organic Hardwood-Based Sterile Mushroom Substrate

$127.99

$38.40

-70%NEW

8-Pack Organic Sterilized Grain Spawn Bags

$127.99

$38.40

-70%NEW

8-Pack ‘Boomr Bag’ Manure-Based Sterile Mushroom Substrate

$127.99

$38.40

NEW

4-pack 'ShroomTek' + Spore Boostr All-in-One Mushroom Grow Bag

$99.99

NEW

'ShroomTek' + Spore Boostr All-In-One Mushroom Grow Bag

$29.99

NEW

'Mastr Mix' Sterile Soyhull & Hardwood Bulk Substrate

$24.99

-70%NEW

8-Pack 'Mastr Mix' Sterile Soyhull & Hardwood Mushroom Substrate

$127.99

$38.40

-70%NEW

CVG (Coco Vermiculite Gypsum) Sterile Bulk Substrate

$22.99

$6.90

NEW

8-Pack CVG (Coco Vermiculite Gypsum) Sterile Bulk Substrate

$127.99