Mushroom Grain Spawn

Mushroom Grain Spawn - Click Here For Instructions
Our grain spawn is grown on 100% certified organic rye berries. It arrives contaminate free, fully developed, and ready to use. Grain spawn is used to inoculate many bags of bulk substrate quickly, and is the choice methodology for medium and large scale growers.

Automatic Volume Discounts
Bulk Volume Discounts are automatically applied at checkout when you add 3 or more grain spawn to your cart. The more you buy, the more you save! 

10 Day Maximum Lead Time
We generally have a healthy stock of ready-to-use grain spawn available, however some large orders may require us to produce it on demand. In these cases, it can be up to ten days before we ship the order.