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Circular Harvest

4 lbs Pink Oyster Grain Spawn

4 lbs Pink Oyster Grain Spawn

Regular price $40.00 CAD
Regular price Sale price $40.00 CAD
Sale Sold out

Circular Harvest Grain Spawn is the perfect product for anyone looking to increase their mushroom production. Our high quality spawn allows hobby growers and commercial growers alike to meet their mushroom growing needs. Simply add it to grain to make more grain spawn or to a hardwood substrate to make fruiting blocks. Using grain spawn in an outdoor mushroom bed made of straw or hardwood chips is also a great option. Each bag of grain spawn can inoculate up to 20 bags of substrate.


1 polypropylene 0.2 micron filter bag

4 lbs organic rye grain (sourced from the Canadian prairies)

1/2 90mm Petri dish of Pink Oyster mushroom mycelium


This product is inoculated from agar culture which ensures it is healthy and strong. It is recommended to use it once received for best results. However, it can be stored at room temp for up to 1-2 months if needed. Additional information can be provided upon request.

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