Spawn is usually sawdust with mushroom mycelium mixed in. Mushroom mycelium is mushroom spore that has started to root. Although it is possible to start with spore, it is tricky and best left to the professionals, so buying spawn from a home gardening supply store or using spawn in a mushroom growing kit is a better option for beginners. A version called plug spawn is specifically designed for use with newly fallen hardwood. All spawn should be used within a short period of time or refrigerated until use.
At this time, please contact us to purchase your sterilized grain spawn.