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Organic Mushroom Spawn
Achieve a better grow with premium mushroom spawn
Whether you're a home grower, small scale grower, commercial grower, or weekend hobbyist, we offer a large variety of certified organic grain spawn, sawdust spawn, and plug spawn for every mushroom growing project.
Organic Grain Spawn
Our USDA-certified organic grain spawn is made with a proprietary blend of millet and wheat berries. It features vigorous, reliable strains from our culture bank and is a favorite among home and commercial growers.
Organic Sawdust Spawn
Whether you're growing on logs, in garden beds, or inside containers, we carry a wide variety of USDA-certified organic sawdust spawn including Wine Cap, Shiitake, Morel, Oyster, and more.
Organic Plug Spawn
Our USDA-certified organic plug spawn is a favorite among log growers. It's ideal for smaller projects and those new to growing mushrooms. Choose from 10+ vigorous mushroom species.
All North Spore spawn is USDA-certified organic and made from the highest-quality cultures.
It's formulated by mycologists, handmade in Maine, USA and 100% guaranteed.
Read what customers are saying
"I don't have enough good things to say about the North Spore team! Not only did they send out some really robust spawn; they also were amazing and answered all my questions!"
Jenny O.
"Communication, delivery, advice and quality are all checked off as excellent in my experience with North Spore. They will definitely be receiving more spawn orders from me."
Don S.
"This spawn is super vigorous and flushes well. It is a consistent performer for our market and travels well. Thank you North Spore for producing such high quality products! "
Heather W.
Using spawn in your garden bed projects
You can grow mushrooms alongside your vegetables or all by themselves! Watch this video to learn how to use sawdust or grain spawn to make an outdoor mushroom bed.
Using spawn in log and totem projects
Sawdust and plug spawn can be used to inoculate freshly cut hardwood logs in shady outdoor spots! Watch this video to learn how to inoculate logs to grow your favorite mushrooms.
