Bulk Substrates

Save big and scale up with our bulk substrate options. Whether you’re growing at home or for commercial use, these large-format bags deliver serious volume and quality.

“5-Pack Sterilized Grain Spawn (25 lbs Total) – Bulk Cultivation Pack” has been added to your cart. View cart

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All-In-One Bag 5LB (3 Pack)
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$114.99 Purchase & earn 115 points!Add to cart
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Pre-Pasteurized Cultivation Kit
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$129.99 Purchase & earn 130 points!Add to cart
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Bulk Cultivation Pack – 20 lbs Coco Coir + 5 lbs Sterilized Grain Spawn
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$129.99 Purchase & earn 130 points!Add to cart
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5-Pack Sterilized Grain Spawn (25 lbs Total) – Bulk Cultivation Pack
Rated 0 out of 5
$139.99 Purchase & earn 140 points!Add to cart

All-In-One Bag 5LB (3 Pack)

Pre-Pasteurized Cultivation Kit

Bulk Cultivation Pack – 20 lbs Coco Coir + 5 lbs Sterilized Grain Spawn

5-Pack Sterilized Grain Spawn (25 lbs Total) – Bulk Cultivation Pack