Out Grow Wood Based Bulk Substrate (25 lbs) - Shop

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Out Grow

All In One Mushroom Grow Bags 8-Pack

Five sealed rectangular blocks of manure-based mushroom substrate, each weighing five pounds. The blocks are tightly wrapped in clear plastic, showing a dark, finely textured organic material. Ideal for bulk mushroom cultivation.

Out Grow

Manure Based Bulk Substrate (25 lbs)

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mega mix sterilized grain bag 1lb

Out Grow

Sterilized Mega Mix Grain Spawn Bag – 1lb

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Five sealed mushroom grow bags filled with fully hydrated and sterilized popcorn grains, each weighing five pounds. The bags are tightly wrapped in clear plastic and feature self-healing injection ports, perfect for inoculation and bulk mushroom cultivation.

Out Grow

Popcorn Bulk Substrate Grain Bags (25 lbs)

Twelve quart-sized jars filled with fully hydrated and sterilized white millet grains, arranged in a grid. The jars feature self-healing injection ports on the lids, making them ideal for easy inoculation and efficient mushroom cultivation.

Out Grow

White Millet Bulk Substrate Jars (12-Pack)

Brown Treasure

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30% off

Max Yield Bins

Max Yield PRO Bulk Substrate Mix - 10 pounds

Promotional graphic for premium bamboo pellets, a true universal substrate. The image features a large pile of light brown cylindrical pellets in the center, set against a background of green bamboo stalks and soil.

Exclusive offer available

Midwest Grow Kits

Premium Renewable Bamboo Wood Pellets - Universal Mushroom Substrate

Mastr Mix Sterile Soyhull & Hardwood Bulk Substrate - BetterGrow Hydro

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BetterGrow Hydro

Mastr Mix Sterile Soyhull & Hardwood Bulk Substrate

Bulk Vermiculite

Wildspore Mushrooms

Bulk Vermiculite

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Turkey Tail mushroom grain spawn in a one quart jar, white mycelium across fully colonized rye grain

Out Grow

Turkey Tail Mushroom Spawn, 1 Quart Jar

Five sealed mushroom grow bags filled with fully hydrated and sterilized rye berries, each weighing five pounds. The bags are tightly wrapped in clear plastic and feature a self-healing injection port, ideal for inoculation and bulk mushroom cultivation.

Out Grow

Rye Berry Bulk Substrate Grain Bags (25 lbs)

Twenty-five sealed mushroom grow bags, each filled with one pound of fully hydrated and sterilized rye berries. The bags are neatly arranged in a grid, wrapped in clear plastic with visible filter patches, perfect for large-scale mushroom cultivation.

Out Grow

Rye Berry Bulk Substrate Grain Bags | With Injection Port (25-Pack)

North Spore

North Spore

4.7

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

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

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

Sawdust Spawn Organic Wine Cap Mushroom Sawdust Spawn

Fruiting Block Organic Lion's Mane Mushroom Grow Kit Fruiting Block

Out Grow

Inoculate and Wait® Brown Rice Flour Based Mushroom Substrate

one ten pound bags of pasteurized CVG substrate on a white background

Exclusive offer available

Mushroom Spawn Store

10 lb Pasteurized CVG Substrate | Bulk Mushroom Mix

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Out Grow

Large Horticultural Perlite (8 quarts)

popcorn mushroom substrate grow bag folded front

Out Grow

Sterilized Popcorn Grain Spawn Bag – 3lb

Master’s Mix substrate bag (hardwood + soy hulls) — Armadillo Myco Supply

Armadillo Myco Supply

Master’s Mix Substrate

Midwest Black Cow manure-based bulk substrate 5 lb bag

Exclusive offer available

Midwest Grow Kits

Midwest's Black Cow Manure Substrate & Casing Mix - 5 lbs

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Mini Wite Milo All-In-One Mushroom Grow Bag

Out Grow

Mini White Milo All-In-One Mushroom Grow Bag

Mini Golden Grain All-In-One Mushroom Grow Bag

Out Grow

Mini Golden Grain All-In-One Mushroom Grow Bag

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Midwest Grow Kits

Midwest Grow Kits

Midwest Grow Kits

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5grain spawn bags on table showing the different sterilized grains in a 10T unicorn bag.

5grain spawn bags on table showing the different sterilized grains in a 10T unicorn bag.

Midwest's Select Bulk Substrate 5 lb bag of pasteurized CVG mushroom substrate

4 lb All-in-One mushroom grow bag with grain and CVG substrate

XL 6 lb All-in-One mushroom grow bag with box

Out-Grow 50/50 Horse Manure and Wheat Straw Substrate - 5 lb Bag Display

Out Grow

50/50 Horse Manure and Straw Mushroom Substrate (5lb Bag)

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mega mix sterilized grain bag mushroom substrate

Out Grow

Sterilized Mega Mix Grain Spawn Bag – 3lb

Twelve quart-sized jars filled with fully hydrated and sterilized white milo grains, arranged in a grid. The jars feature self-healing injection ports on the lids, making them ideal for easy inoculation and efficient mushroom cultivation.

Out Grow

White Milo Bulk Substrate Jars (12-Pack)

golden wheat straw

Out Grow

Natural Wheat Straw (1 cubic foot)

Sterilized popcorn grow bag 5lbs folded front

Out Grow

Sterilized Popcorn Grain Spawn Bag – 5lb

Exclusive offer available

Bonsai Mushrooms

Bulk Manure Substrate (5 lbs) | CVG+

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Sealed 5 lb sterilized Master's Mix substrate bag with filter patch

Exclusive offer available

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Blue Oyster mushroom grain spawn in a one quart jar, densely colonized with thick white mycelium, Out-Grow lab

Out Grow

Blue Oyster Mushroom Spawn, 1 Quart Jar

Red Milo All-In-One Mushroom

Out Grow

Red Milo All-In-One Mushroom Grow Bag

Twelve quart-sized jars filled with a sterilized mix of grains, including rye, milo, and popcorn. The jars are arranged in a grid and feature self-healing injection ports on the lids, designed for easy inoculation and optimal mushroom cultivation.

Out Grow

Mega Mix Bulk Substrate Jars (12-Pack)

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Sculptural lamps under $150

Sculptural lamps under $150

Mushroom lamps, orb bases, and pleated cones.

Out Grow

Mushroom Grow Kit (Quick Kit)

Out Grow

Inoculate and Wait® Mini Manure Based Mushroom Substrate

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Sterilized Red Milo Quart Jar

Out Grow

Red Milo Mushroom Jar – Sterilized 1 Quart

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Mega Mix All-In-One Mushroom Grow Bag

Out Grow

Mega Mix All-In-One Mushroom Grow Bag

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Redwood Mushroom Supply

Sterilized Hardwood Mix for Gourmet Mushrooms

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Chicken of the Woods grain spawn in a one quart jar, dense creamy white colonization, Out-Grow lab bench

Out Grow

Chicken of the Woods Mushroom Spawn, 1 Quart Jar

Redwood Mushroom Supply

'All-in-One' Mushroom Grow Bag - Wood-Lover

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Trees.com

Trees.com

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Twelve quart-sized jars filled with fully hydrated and sterilized rye berries, arranged in a grid. The jars feature self-healing injection ports on the lids, making them ideal for mushroom cultivation and inoculation in bulk.

Out Grow

Rye Berry Bulk Substrate Jars (12-Pack)

1lb Pasteurized Mushroom Casing Mix - Ready-to-Use in Grow Bag

Out Grow

Pasteurized Mushroom Casing Mix

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Out Grow

Inoculate and Wait® Wood Based Mushroom Substrate

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white milo mushroom grow bag standing up forward

Out Grow

White Milo Mushroom Subtrate (3lb)

Brand spotlight: Made In Cookware

Stock your kitchen with restaurant-quality cookware.

Redwood Mushroom Supply

Sterilized Fast Fruiting Mushroom Substrate (Master’s Mix)

Organic Rye Grains

Mycoboutique

Whole Rye Grains – Ideal for Mushroom Cultivation

Mini Mega Mix All-In-One Mushroom Grow Bag

Out Grow

Mini Mega Mix All-In-One Mushroom Grow Bag

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18% off

Fungus Paradise

Substrate Kit

€44.90€54.90

Black Poplar mushroom grain spawn fully colonized in a one quart glass jar, white mycelium over rye grain, on a stainless steel lab bench

Out Grow

Black Poplar Mushroom Spawn, 1 Quart Jar

Five sealed rectangular blocks of 50/50 horse manure and straw mushroom substrate, each weighing five pounds. The blocks are tightly packed in clear plastic, showing a dark mixture of organic material with visible straw strands throughout.

Out Grow

50/50 Horse Manure and Straw Bulk Substrate (25 lbs)

Twelve half-pint jars filled with a sterilized mix of brown rice flour and vermiculite substrate, arranged in a grid. The jars feature self-healing injection ports on the lids, ideal for easy inoculation and efficient mushroom cultivation.

Out Grow

BRF Bulk Substrate Jars (12-Pack)

Twelve quart-sized jars filled with fully hydrated and sterilized popcorn grains, arranged in a grid. The jars feature self-healing injection ports on the lids, making them ideal for easy inoculation and efficient mushroom cultivation.

Out Grow

Popcorn Bulk Substrate Jars (12-Pack)

Max Yield Bins

Organic Wood Based Substrate (5 LBS)

Mini Wood-Based All-In-One Mushroom Grow Bag

Out Grow

Mini Wood-Based All-In-One Mushroom Grow Bag

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Mushroom Grain / Oak Sawdust Substrate - Fully Sterlised - Ready for innoculation - Medifungi

Medifungi

Hardwood Mushroom Substrate - Oak Sawdust/Wheat Bran - Fully Sterilized

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Add a pop of color

Shop Brooklinen, 2Modern, Revival Rugs, and more

Out Grow

Sterilized Oat Grain Spawn Bag – 3lb

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A grow kit with a clear bag sprouting oyster mushrooms from a sterilized substrate, shown with a sealed block and a black box labeled "5lb Master's Mix Substrate—50/50 Oak Hardwood Pellets & Non-GMO Soy Hulls, ready for gourmet mushroom cultivation.

17% off

Spore Sorcery

5lb Master's Mix Substrate - 50/50 Oak Hardwood Pellets & Non-GMO Soy Hulls – Prepped & Ready for Gourmet Mushroom Cultivation

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Enoki mushroom grain spawn in a one quart glass jar, white mycelium speckled through the rye grain

Out Grow

Enoki Mushroom Spawn, 1 Quart Jar