Mushroom Spawn, Grow Kits, & Supplies | Johnny's Selected Seeds

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Choose from sawdust spawn for production in garden beds, logs, and containers, and plug spawn for production in logs. We offer a variety of strains, all certified organic and satisfaction guaranteed.

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22 Products

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Blue Oyster Plug Spawn – 100 Count Plug Spawn

Blue Oyster Plug Spawn – 100 Count

Organic Mushrooms

Vigorous and reliable.

Lion's Mane Sawdust Spawn Sawdust Spawn

Lion's Mane Sawdust Spawn

Organic Mushrooms

Unique and versatile.

Angle Grinder Adapter for Log Drill Bits – Standard Mushroom Supplies

Angle Grinder Adapter for Log Drill Bits – Standard

Mushroom Supplies

Accelerate the log inoculation process.

Italian Oyster Plug Spawn – 100 Count Plug Spawn

Italian Oyster Plug Spawn – 100 Count

Organic Mushrooms

Finest culinary oyster.

Shiitake Plug Spawn – 500 Count Plug Spawn

Shiitake Plug Spawn – 500 Count

Organic Mushrooms

Nutritious and medicinal.

Italian Oyster Plug Spawn – 500 Count Plug Spawn

Italian Oyster Plug Spawn – 500 Count

Organic Mushrooms

Finest culinary oyster.

Blue Oyster Plug Spawn – 500 Count Plug Spawn

Blue Oyster Plug Spawn – 500 Count

Organic Mushrooms

Vigorous and reliable.

Lion's Mane Plug Spawn – 500 Count Plug Spawn

Lion's Mane Plug Spawn – 500 Count

Organic Mushrooms

Unique and versatile.

Blue Oyster Sawdust Spawn Sawdust Spawn

Blue Oyster Sawdust Spawn

Organic Mushrooms

Vigorous and reliable.

Out Of Stock

Log Inoculation Drill Bit for Sawdust Spawn – 12 mm Mushroom Supplies

Log Inoculation Drill Bit for Sawdust Spawn – 12 mm

Mushroom Supplies

Designed for drilling sawdust spawn into logs to the correct depth.