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

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We offer three options for growing mushrooms: ‘Spray & Grow’ kits for the home gardener, sawdust spawn for production in garden beds, logs, and containers, and plug spawn for production in logs. Choose from a variety of strains, all certified organic and satisfaction guaranteed.

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25 Products

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Pink Oyster 'Spray & Grow' Kit 'Spray & Grow' Kits

Pink Oyster 'Spray & Grow' Kit

Organic Mushrooms

Thrives in higher temperatures.

Lion's Mane Plug Spawn – 100 Count Plug Spawn

Lion's Mane Plug Spawn – 100 Count

Organic Mushrooms

Unique and versatile.

Thumb-Press Log Inoculation Tool Mushroom Supplies

Thumb-Press Log Inoculation Tool

Mushroom Supplies

Innovative spring-loaded tool for inoculating logs with sawdust spawn.

Lion's Mane Sawdust Spawn Sawdust Spawn

Lion's Mane Sawdust Spawn

Organic Mushrooms

Unique and versatile.

Blue Oyster Plug Spawn – 100 Count Plug Spawn

Blue Oyster Plug Spawn – 100 Count

Organic Mushrooms

Vigorous and reliable.

Blue Oyster 'Spray & Grow' Kit 'Spray & Grow' Kits

Blue Oyster 'Spray & Grow' Kit

Organic Mushrooms

Vigorous and reliable.

Italian Oyster Sawdust Spawn Sawdust Spawn

Italian Oyster Sawdust Spawn

Organic Mushrooms

Finest culinary oyster.

Shiitake Plug Spawn – 500 Count Plug Spawn

Shiitake Plug Spawn – 500 Count

Organic Mushrooms

Nutritious and medicinal.

Lion's Mane Plug Spawn – 500 Count Plug Spawn

Lion's Mane Plug Spawn – 500 Count

Organic Mushrooms

Unique and versatile.

Italian Oyster Plug Spawn – 500 Count Plug Spawn

Italian Oyster Plug Spawn – 500 Count

Organic Mushrooms

Finest culinary oyster.

Italian Oyster Plug Spawn – 100 Count Plug Spawn

Italian Oyster Plug Spawn – 100 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.

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.