Plug Spawn for Logs & Stumps

You can grow a variety of gourmet mushrooms on logs and stumps, using our Mushroom Plug Spawn.

You can grow a variety of gourmet mushrooms on logs and stumps, using our Mushroom Plug Spawn.

Learn more about Plug Spawn for Logs & Stumps +

Shiitake Mushrooms
Fungi Perfecti offers plug spawn of a number of hardy mushroom species: Reishi, Maitake, Lion's Mane, Shiitake, Pearl, Blue and Phoenix Oyster and Turkey Tail. These sterilized birch plugs are spirally grooved and fully colonized by pure mushroom mycelium, and are available in packages of approximately 100 and approximately 1000 dowels. Our Plug Spawn comes complete with our user-friendly, fully illustrated 14-page instruction booklet.

By using the dowels to inoculate cut hardwood logs or stumps, mushroom mycelium can be encouraged to grow throughout or colonize the wood. Once the wood is fully colonized (typically 9–12 months) mushrooms will spring forth from cracks or channels in the wood. Generally, the best time of year to inoculate logs and stumps is in the Spring, after your last hard frost. However, you can inoculate your logs any time up to 30–45 days before consistently (i.e. 'round the clock) freezing temperatures set in for the Winter. The idea is to allow the mushroom mycelium growing on the Plug Spawn time to establish itself in its new home before it goes into dormancy over the Winter. Logs can be left outdoors over the Winter, under a layer of straw or a burlap tarp, shade cloth or other vapor-permeable cover (do not use plastic tarps: this can cause mold to form). In areas where the Winter is exceptionally harsh, logs can be stored in a shed, barn, garage or other outbuilding.

Wood type cross-reference chart
Our Plug Spawn grows on recently cut or fallen logs. Milled lumber, rotted wood or trees that have been down for longer than 6 months are not suitable. Logs should be cut to lengths of 3–4 feet, and are best if they do not exceed approximately 8 inches in diameter. Stumps of 6–14 inches in diameter are recommended for stump cultivation. Use a 5/16" drill bit to drill 1¼"-deep holes, evenly spaced around and along the logs. Stumps should be inoculated along the circumference of their face, in the border between the bark and the heartwood. Insert 1 plug per hole and whack it in with a rubber mallet or a hammer. A 3–4 foot log can take 50 or more plugs, while stumps usually hold 30–50 plugs. Holes can be sealed with cheese wax or beeswax to protect the mycelium while it is growing; although this step is helpful, it is not absolutely necessary. (Fungi Perfecti sells sealing wax for this purpose.)

We guarantee our Mushroom Plug Spawn to be viable. (In fact, if left unattended on a shelf or in your refrigerator for too long, many of our Plug Spawn species will begin to produce mushrooms right out of the bag!) However, the total number of mushrooms you can expect to get via log and stump cultivation will vary from log to log, and from season to season.

Any outdoor mushroom cultivation project involves a number of variables; climate, species, sugar and moisture content of wood, consumption of mushrooms or mushroom mycelium by insects and other animals, quality of care and just plain old chance, to name a few. Due to the many and various contributing factors involved in this method of mushroom cultivation, Fungi Perfecti cannot accurately predict the amount of mushrooms your Plug Spawn will produce.

Shiitake Plug Spawn - 100 Plugs

Shiitake Plug Spawn - 100 Plugs

$14.95

Description Skill Level: 1/5Favored wood: Shiitake will fruit on a wide variety of deciduous wood so it's a great mushroom for first-time cultivato...

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$14.95
Sealing Wax for Plug Spawn
Sale

Sealing Wax for Plug Spawn

from $1.65

High quality, soy-based wax for the sealing of Plug Spawn inoculation sites. Made in the USA from domestically grown, non-GMO soy beans. Can be app...

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from $1.65
Sale
Lion's Mane Plug Spawn - 100 Plugs

Lion's Mane Plug Spawn - 100 Plugs

$14.95

Description Skill Level: 3/5Favored wood: oak, beech, maple, elm and chestnutPreferred orientation: Vertical, partially buried after incubationPref...

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$14.95
Pearl Oyster Plug Spawn - 100 Plugs

Pearl Oyster Plug Spawn - 100 Plugs

$14.95

Description Skill Level: 1/5Favored wood: alder, maple, elm, oak, birch, beech, ash, mulberry, sweetgum. Cottonwood, poplar, willow, basswood (lind...

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$14.95
Blue Oyster Plug Spawn - 100 Plugs

Blue Oyster Plug Spawn - 100 Plugs

$14.95

Description Skill Level: 1/5Favored wood: alder, maple, elm, oak, birch, beech, ash, mulberry, sweetgum. cottonwood, poplar, willow, basswood (lind...

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$14.95
Plug Spawn Kit

Plug Spawn Kit

$14.95

We've assembled a selection of critical items for your outdoor log and stump cultivation projects, at a special price. Add your selection of Plug S...

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$14.95
Reishi Plug Spawn - 100 Plugs

Reishi Plug Spawn - 100 Plugs

$14.95

Description Skill Level: 4/5Favored wood: oak, maple, alder, elm, sweetgum, magnolia, locust, mulberry and—in Asia—plumPreferred orientation: Horiz...

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$14.95
Turkey Tail Plug Spawn - 100 Plugs

Turkey Tail Plug Spawn - 100 Plugs

$14.95

Description Skill Level: 1/5Favored wood: oak, alder, poplar, aspen, elm, ironwood, and eucalyptus. This mushroom species will also grow on many ty...

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$14.95
Shiitake Plug Spawn - 1000 Plugs

Shiitake Plug Spawn - 1000 Plugs

$44.95

Description Skill Level: 1/5Favored wood: Shiitake will fruit on a wide variety of deciduous wood so it's a great mushroom for first-time cultivato...

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$44.95
Pearl Oyster Sawdust Spawn

Pearl Oyster Sawdust Spawn

$20.00

Pleurotus ostreatus Fungi Perfecti's Sawdust / Wood Chip Spawn comes in a disposable Spawn Bag With Filter Patch. Approximate yield is 1 gallon (5 ...

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$20.00
Maitake Plug Spawn - 100 Plugs

Maitake Plug Spawn - 100 Plugs

$14.95

Description Skill Level: 4/5Favored wood: oak, elm, or honey LocustPreferred orientation: If using logs, orient horizontally and partially bury aft...

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$14.95
Shiitake Sawdust Spawn

Shiitake Sawdust Spawn

$20.00

Lentinula edodes Fungi Perfecti's Sawdust / Wood Chip Spawn comes in a disposable Spawn Bag With Filter Patch. Approximate yield is 1 gallon (5 lbs...

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$20.00
Phoenix Oyster Plug Spawn - 100 Plugs

Phoenix Oyster Plug Spawn - 100 Plugs

$14.95

Description Skill Level: 1/5Favored wood: spruce, hemlock, Douglas fir, pinyon pine and Ponderosa pinePreferred orientation: VerticalPreferred frui...

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$14.95
Lion's Mane Plug Spawn - 1000 Plugs

Lion's Mane Plug Spawn - 1000 Plugs

$44.95

Description Skill Level: 3/5Favored wood: oak, beech, maple, elm and chestnutPreferred orientation: Vertical, partially buried after incubationPref...

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$44.95
Pearl Oyster Plug Spawn - 1000 Plugs

Pearl Oyster Plug Spawn - 1000 Plugs

$44.95

Description Skill Level: 1/5Favored wood: alder, maple, elm, oak, birch, beech, ash, mulberry, sweetgum. Cottonwood, poplar, willow, basswood (lind...

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$44.95
Turkey Tail Plug Spawn - 1000 Plugs

Turkey Tail Plug Spawn - 1000 Plugs

$44.95

Description Skill Level: 1/5Favored wood: oak, alder, poplar, aspen, elm, ironwood, and eucalyptus. This mushroom species will also grow on many ty...

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$44.95
Blue Oyster Plug Spawn - 1000 Plugs

Blue Oyster Plug Spawn - 1000 Plugs

$44.95

Description Skill Level: 1/5Favored wood: alder, maple, elm, oak, birch, beech, ash, mulberry, sweetgum. cottonwood, poplar, willow, basswood (lind...

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$44.95
Maitake Plug Spawn - 1000 Plugs

Maitake Plug Spawn - 1000 Plugs

$44.95

Description Skill Level: 4/5Favored wood: oak, elm, or honey LocustPreferred orientation: If using logs, orient horizontally and partially bury aft...

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$44.95
Phoenix Oyster Plug Spawn - 1000 Plugs

Phoenix Oyster Plug Spawn - 1000 Plugs

$44.95

Description Skill Level: 1/5Favored wood: spruce, hemlock, Douglas fir, pinyon pine and Ponderosa pinePreferred orientation: VerticalPreferred frui...

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$44.95
Reishi Plug Spawn - 1000 Plugs

Reishi Plug Spawn - 1000 Plugs

$44.95

Description Skill Level: 4/5Favored wood: oak, maple, alder, elm, sweetgum, magnolia, locust, mulberry and—in Asia—plumPreferred orientation: Horiz...

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$44.95

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