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Blue Oyster Grain Spawn (3 lbs)

★★★★★
3 reviews

Blue Oyster Grain Spawn (3 lbs)

$21.99Pleurotus ostreatus
Mix & Match: Buy any 2 grain spawn bags for $15.99/ea 27% OFF
Mix & Match: Buy any 4 grain spawn bags for $14.99/ea 32% OFF

Our premium blue oyster grain spawn is the perfect starting point for cultivating delicious and beautiful blue oyster mushrooms (Pleurotus ostreatus). Made with high-quality millet, this grain spawn is fully colonized with a vigorous, high-yielding strain, ensuring rapid colonization of your chosen substrate. Key Features: Millet, Pleurotus ostreatus (Blue Oyster) Strain, Fully Colonized, Ready to Use, Fast Colonization, High Yield Potential, Ideal for Logs, Straw, and Sawdust, Suitable for Beginners and Experienced Growers, 3lbs Bag. Storage: Refrigerate. Detailed instructions included.

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  • Family-Owned PNW Business

Grown to Order

Need a larger batch? Want a batch that has never seen cold storage? We'll cultivate Blue Oyster Grain Spawn (3 lbs) specifically for you. Expertly grown on-demand and ready to ship just before peak mycelial activity in just 14-21 days!

*Multipack discounts apply! Please note: To qualify, multipacks must consist entirely of grown-to-order items and cannot be mixed with off-the-shelf products.

Product Specifications

Amount3lbs
SpeciesPleurotus ostreatus
Skill LevelBeginner
Tolerance to MistakesVery Tolerant
Shelf Life2 Weeks
Ideal SubstratesHardwood, Coffee Grounds, Straw, Grains
StrainSP0012401

Customer Reviews

5.0
★★★★★
Based on 3 reviews
Danielle J. Verified Purchase
May 12, 2026
★★★★★

Huge and fast growing

Great, clean spawn. Fast colonizer and produces massive flushes.

Jimmy I. Verified Purchase
May 04, 2026
★★★★★

Fantastic!

This was my first time growing in buckets in a grow tent. Was very easy and they did even better after I got a humidifier in the tent! I just harvested my second flush. Very easy!

Kylie L. Verified Purchase
Apr 30, 2026
★★★★★

Yummy mushrooms, quick colonization, easy to fruit.

I'm a return buyer and I love growing any and all mushrooms, especially blue oysters, from the spawn I get from Shroomage - always high quality mycelium!!! Very easy to grow in buckets on my front porch.

Blue Oyster Grain Spawn (3 lbs)$21.99