Perfect For:
- Small farms & micro-growers
- Home cultivators with bags/tubs
- Labs, educators, and student projects
- Anyone ready to level up and create their own blocks
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Mushroom Grain Spawn — Whole Oats, Farm-Grown & Ready to Use
$15.00
Start your mushroom grow with clean, vigorous spawn — made the right way.
Our mushroom grain spawn is crafted using whole oats for superior nutrition, hydration balance, and mycelial growth. Each bag is prepared and sterilized in small batches on our USDA-certified organic mushroom farm in New Jersey, then inoculated under sterile lab conditions to ensure purity and performance.
Ideal for inoculating sterilized or pasteurized bulk substrates like sawdust, or straw, this spawn delivers fast colonization and consistent yields for both home growers and small farms.
✦ Prepared, sterilized, and inoculated in-house for quality control
✦ Fast colonization and strong mycelial structure
✦ Perfect for gourmet species like Lion’s Mane, Blue Oyster, or Chestnut
✦ Grown in New Jersey
From spore to substrate, we handle every step ourselves — so you can grow with confidence, knowing your spawn starts clean, fresh, and powerful.
Frequently asked questions
What makes your grain spawn different from others?
We use whole oats, not millet blends or cracked corn. Oats provide optimal nutrition and moisture balance, creating the strongest possible foundation for fast, healthy colonization and multiple flushes.
But the real difference starts earlier:
Since 2017, we’ve tested dozens of strains of each mushroom species in both controlled lab conditions and full-scale production. The strains we offer now are the same commercial-grade genetics we use on our own USDA-certified organic farm — chosen for yield, reliability, and resistance to contamination.
We also supply this same spawn to other mushroom farms throughout New Jersey. If it works for professional growers, you can count on it to perform in your home lab or hobby setup too.
How fresh is the spawn when it arrives?
All spawn is inspected and shipped the same week it's fully colonized, so you get fast, vigorous growth with every order. We typically inoculate each batch 7-20 days before shipment, depending on the strain and its growth rate. That means your spawn arrives fresh, active, and ready to go — no long storage, no guessing, just clean mycelium prepared for immediate use.
What growing methods can I use with your spawn?
Our grain spawn is ideal for:
- Bulk substrate in monotubs or shoeboxes or buckets
- Grow bags
- Fruiting blocks
Is this safe for beginners?
Yes! Liquid culture is actually easier than working with spores, it's already alive and ready to spread. As long as you keep things clean and follow the instructions, you’ll get great results.
“Jacob, your Blue Oyster spawn is so beautiful, you must sing to it!”
Joesph A, NJ
"Very clean culture. Inoculated steamed logs came out very well. The culture is very aggressive. It became rhizomorphic after feeding on the logs."
Christopher N, TN
“Spawn arrived quickly and it’s PERFECT! Couldn’t wait to get it down, I know it will make wonderful mushies🍄”
Holly C, CA