This simple, step-by-step guide will show you exactly how to grow shiitake mushrooms — a delicious gourmet mushroom with scientifically proven health benefits.
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Fight Cancer, Harvest Sunlight to Produce Your Own Vitamin D, and Boost Your Immune System… all by learning how to grow shiitake mushrooms!
You may have noticed from our Instagram photos and other articles, that The Tyrant and I love mushrooms. That wasn’t always the case.
We used to think that mushrooms were just the bland white button variety (Agaricus bisporus) that we saw in the grocery store. The only other mushrooms we knew about were portobellos, which are actually just a more mature white button mushroom (yep, Agaricus bisporus too).
An introduction to a whole new world of gourmet mushrooms
That all changed in 2010 when we got to know mycologist (mushroom scientist) Tradd Cotter. Since then, we’ve steadily grown in our knowledge of and passion for gourmet, medicinal mushrooms. Today, we grow our own mushrooms and wild-forage mushrooms as well.
As a result, we know that there are seemingly infinite varieties of delicious edible mushrooms that come in every imaginable size, shape, color, and flavor.

Gorgeous chanterelle and cinnabar mushrooms from a summer forage in the woods.
Some of our favorite mushrooms range in taste from the fruity & nutty chanterelles to maple syrup flavored parasols to savory & sublime morels.
And, just to give you a proper appreciation for the size that mushrooms can grow, the largest living organism on earth, is a 4 mile wide edible honey mushroom!

Fruiting Honey mushrooms in the woods behind our home.
Learn the Safety Rules Before You Start Foraging and Eating Mushrooms
Unless you live in the desert, chances are there are many edible mushroom varieties that grow wild in your yard or nearby woods.
Just as you shouldn’t get behind the wheel of a car without proper training/education, you should NEVER eat a mushroom (or anything else) that you’re not 100% sure you’ve correctly ID’d. Doing so could result in extreme illness or a slow and painful death.
Scared? Good!
Instead of letting your healthy fear of mushrooms keep you off of the mushroom “road” forever, why not just learn how to drive safely and then enjoy all the places these wonderful organisms will take you?
If you’re still not convinced that you should consider getting your “driver’s license” in mushrooms, you might be further swayed by knowing that many varieties of mushrooms have incredible medicinal benefits: they’re antiviral, antimicrobial, anticancer, antihyperglycemic, cardioprotective, and anti-inflammatory.
Want to keep reading? Good!
Mycorrhizal mushrooms
Many of our favorite gourmet mushrooms can’t be commercially cultivated since they are “mycorrhizal,” i.e. they form symbiotic relationships with the roots of plants.
Mycorrhizal mushrooms vastly expand the reach of a plant’s root system to help it draw in additional water and nutrients. In return, the plants provide the mushrooms with a constant source of carbohydrates via glucose and sucrose. It’s estimated that 95% of all plants are mycorrhizal.
So, when you’re walking through the woods and you see mushrooms, you’re seeing a very small portion of the actual organism — the visible fruiting body. Meanwhile, a massively complex, interconnected web of organisms are dancing invisibly underneath your feet.
A mushroom is to its fungal body what an apple is to a tree. Isn’t nature cool?
The Easiest Mushrooms to Grow At Home
Not all mushrooms are mycorrhizal. Many of the best edible mushrooms in the world can easily be cultivated without needing living tree roots to associate with.
At Tyrant Farms, we’re currently growing oyster, shiitake, king stropharia, chicken of the woods, and blewit mushrooms, not to mention at least 15 native edible varieties we’ve enjoyed from our lawn and/or the woods behind our home that were here long before we were.
This particular article is about a revered Asian delicacy with a wide range of medicinal properties to boot: the shiitake mushroom.
We’ve had some beautiful shiitake harvests over the years, and wow are they a delicious mushroom. As such, we wanted to let you know how to grow shiitake mushrooms, too!
Another cool DIY trick we’ll teach you below: you can supercharge your shiitake mushrooms with extra Vitamin D before eating them.
Keep reading to find out how!
DIY: How to Grow Shiitake Mushrooms

A beautiful cluster of shiitake mushrooms from our logs. These are gill-side up and ready to be charged with Vitamin D in the sun.
The shiitake growing instructions below are very detailed, so they may look complicated at first glance. However, learning how to grow shiitake mushrooms is actually quite simple.
For reference, think about how complicated instructions for making a peanut butter & jelly sandwich look when you see them in writing. Same thing here, so don’t be intimidated!
I. How to Grow Shiitake Mushrooms: MATERIALS LIST
Here’s the materials you’ll need to grow shiitake mushrooms in logs:
- 100 inoculated shiitake mushroom plugs. You can buy shiitake plugs here. We grow both warm weather and cool weather shiitakes so that we can get fresh shiitake mushrooms throughout the year.
- Two (2) recently cut hardwood tree sections with bark still on. These should be 4-8 inches in diameter and 3-4 feet long. Thick barked hardwoods such as oaks & poplars are ideal. To make more shiitake logs, get more shiitake mushroom plugs at the same ratio (roughly 50 plugs per 6″ diameter x 4′ long log).
- High speed/power drill with a multi-purpose 5/16″ drill bit. If you want to get more serious and do a lot of logs, you’ll probably want to upgrade to an angle grinder with specialized high speed adapter as you can see here.
- Rubber mallet (or hammer but mallet is better) for tapping the mushroom plugs into the holes.
- Food grade wax, some beeswax or cheese wax for sealing your mushroom plugs in the log. Note: canning wax isn’t ideal because it becomes really brittle and can fall off leaving your logs open & exposed to being colonized by other mushrooms.
- Old junk can for melting your wax.
- Camping stove or other heat source for melting wax in can. We just use our stove top and reheat the wax as necessary.
- Small paint brush for applying wax.
II. How to Grow Shiitake Mushrooms: STEP BY STEP GUIDE
1. Inoculate your shiitake logs in the warm months, ideally spring.
If you inoculate your shiitake logs in the middle of winter when it’s below freezing out, the spawn won’t be very active. The ideal time to inoculate shiitake logs is after freezing weather has passed in the spring.
You can continue to inoculate your shiitake logs throughout the warm months up until a couple months before your first freeze.
2. Order Your Shiitake Mushroom Plugs
Once you’ve got your logs identified or cut, go ahead and order your shiitake mushroom plugs. Again, 100 shiitake plugs is enough to do two, 6″ diameter logs that are 3-4′ long. If you have more logs, order more shiitake plugs.
If you can’t use your shiitake plugs within a week of arrival, stick them in the fridge for up to 6 months.
3. Cut hardwood tree sections or source just-cut hardwood logs.
Select two suitable living hardwood tree sections or tree branches that are 4-8 inches in diameter and 3-4 feet long. Oak is ideal, but other hardwoods are fine too.
100 mushroom plugs will adequately inoculate two logs with the above dimensions.
We used to recommend letting your logs “cure” for 2-4 weeks in a shaded, dry environment off of the dirt or forest floor (like a garage or shed floor). That’s because healthy, living trees have anti-fungal agents in their sap, so 2 weeks allows time for these compounds to dissipate.
However, our mycologist friend who originally made that recommendation to us years ago now says that he inoculates his logs immediately after cutting. Apparently, the mushroom spawn will “hang out and wait,” then start to inoculate the logs as soon as the wood’s anti-fungal compounds break down.
The longer you let your logs sit without inoculating them with your shiitake mushroom plugs, the more time you give fungal spores from other species to land on your logs and start to grow.
So don’t wait more than one month before inoculating your logs or your mushrooms will likely have increased competition.
4. Drill Holes In Your Shiitake Mushroom Logs
Use a power drill with a 5/16″ drill bit attachment to drill offsetting, parallel rows of holes in each log. This should look like a diamond pattern.
Each hole should be about 1 1/4″ deep and no more than 3-4″ apart.
Ideally on a 3ft log, you should have 50 holes per log. On a 6ft. log, you should have 100 holes. We prefer the shorter 3ft logs because they’re much easier to carry and move.
5. Insert Your Shiitake Mushroom Plugs Into Logs
Time for mushroom surgery! Wash your hands to make sure you’re not infecting your shiitake plugs with any competing fungi.
In a shaded area, separate your plugs into two piles of 50 plugs (assuming you’re using 3ft logs). Put the plugs on a clean surface, like a washed plate or a ziplock bag.
Put your logs on newspaper or plastic if you don’t want melted wax on the floor/ground. Insert your shiitake plugs into each hole. Immediately tap them in with your rubber mallet or hammer.
Make sure each shiitake plug is well set into the hole so that the surface of the plug is at or below the surface level of the log.
Don’t leave any drilled holes empty! If needed fill any empty holes with wax, or another species of mushroom will take hold there.
6. Melt and Apply Wax to Your Shiitake Logs
On a stove top, grill, or camp stove, heat your wax until fully melted.
Using a cheap paint brush, seal each cut end of the log completely with melted wax. Next, seal each hole thoroughly with wax so that each shiitake plug has its own tight little “house,” safe from other competing fungi that might come knocking.
7. Incubate Your Shiitake Logs for 6-12 Months
Place your shiitake logs in a shady, moist location off of the ground but within reach of a garden hose. You don’t want too much sunlight to hit the logs, and you don’t want the logs touching the ground, which encourages other competing fungi to come aboard.
An old palette, bricks, or concrete blocks are good for this purpose. Ideally, you can also cover your logs with a breathable cloth (such as a shade cloth or weed blocker) to help keep out sun while allowing moisture to come through, Don’t use plastic since this will make your logs mold!
Once you have your logs stored, it’s time to think about their water needs…
- Wet climate – If you live in a moist climate like we do, you can water your shiitake logs once per week for about 10 minutes during a dry week in which it doesn’t rain. If you get a good soaking rain, don’t worry about watering them).
- Dry climate – If you live in a dry/arid climate, you should plan to water your logs twice per week for 10+ minutes each time. Don’t water your logs if the outside temps are below freezing as this can cause your logs to split or loose their bark.
To help remember to water your shiitake logs, we recommend setting up a recurring calendar event with an alert so that your technology can help you take care of your biology.
8. When Ready, “Initiate” Your Shiitake Logs
Under ideal conditions, your shiitake logs will be ready to fruit after 6 months, but it’s recommended that you wait at least 9-12 months before “initiating” them. “Initiating” them means forcing them to fruit and produce mushrooms.
It takes a lot of energy for the shiitake colony to produce mushrooms (like having a baby). Waiting to initiate them ensures that the colony is really strong.
Your logs will do a pretty good job of telling you when they’re ready: keep an eye on the cut ends of the logs that you sealed with wax, and if the surface area looks dark and mottled, then you know the colony has taken over the log and is ready to fruit.
Sometimes, under ideal conditions, your logs will go ahead and fruit on their own without your help.
Once you’ve determined that your shiitake logs are ready to be initiated, you’ll want to submerge them in water for 24 hours. You can use a bathtub, a pail, a contractor bag, a natural (clean) body of water, or whatever else you can come up with that’s big enough.
Ideally, you can use non-chlorinated water (rain, spring, boiled tap water, creek, etc), but we’ve found that water straight out of the hose will work fine if that’s your only option.

Since we originally wrote this article, we’ve built our own backyard duck pond for our egg-laying Welsh Harlequin ducks. As you can see here, our duck pond makes an ideal spot to soak/initiate our shiitake mushroom logs – although our ducks might disagree! We usually soak our shiitake logs overnight so our girls can enjoy log-free swimming during the day.
After 24 hours of soaking, place your logs back in a shady area and in an upright, vertical position. This insures that when mushrooms start forming, they don’t get dirty.
You’ll see “primordia” (baby mushrooms) form sometime between 2-14 days. Make sure the shiitake logs stay moist during this waiting period by watering them 1-2 times per day for about 5 minutes each time.
Soon, your whole log will be covered with beautiful shiitake mushrooms! There’s not a “right” size to eat them—you can pick them when they’re small or let them get huge.
9. Harvest Sunlight to Boost Vitamin D, Then Cook & Eat Your Shiitake Mushrooms!
We learned an incredibly cool, simple technique courtesy of famed mushroom expert, Paul Stamets, that literally allows you to harvest sunlight to produce Vitamin D.
Vitamin D3 is produced from animals and used in most D vitamin supplements. Vitamin D2 is the type of D vitamin found in mushrooms and plants.
As Stamets says, “Vitamin D is an essential vitamin that boosts the immune system and plays vital roles in human metabolism.”
Vitamin D is incredibly good for you, and you need it regularly to stay healthy, especially in the northern hemisphere or during the fall, winter, and early spring when there is less sunlight, preventing your body from producing its own Vitamin D.
How to grow shiitake mushrooms and turn them into Vitamin D powerhouses:
Once you’ve harvested your shiitake mushrooms, put them in a sunny location gill side up for 24-48 hours.
This has been proven to drastically boost the shiitake’s natural Vitamin D2 levels from around 100 IU/100 grams to nearly 46,000 IU/100 grams!
Cooking with shiitake mushrooms
Now that you know how to grow shiitake mushrooms, we recommend you learn how to cook them! Not to worry.
There are infinite numbers of ways to cook your delicious and versatile shiitake mushroom. Just do a google search and start experimenting. We just made this easy shiitake mushroom green bean stir fry recipe courtesy of Jaden Hair over at Steamy Kitchen.
If you have too many shiitkae mushrooms to eat, don’t worry. Dry them and put them in an airtight container. Yes, the elevated Vitamin D levels will last for over one year – and you can also put dry shiitakes out in the sun gill-side up to charge back up!
We hope this How To Grow Shiitake Mushrooms Guide will inspire you to grow and enjoy your own shiitake mushrooms at home, year round!

Warning: Don’t ever eat anything that you can’t identify with 100% certainty. Also, it’s estimated that 1-2% of the population may experience an allergic reaction to mushrooms due to their body’s inability to digest them (they don’t have the necessary enzymes).
So, the first time you eat a shiitake or any other edible mushroom, just try a small amount. Wait 24-48 hours and if you haven’t experienced an allergic reaction, it’s safe to assume that your body is perfectly capable of digesting them.

More fun fungi articles you might enjoy:
22 Comments
ieva
August 20, 2024 at 1:50 pmthank you for sharing.. I was researching about duck egg production because im considering to have ducks and I end up here.. what a touching story. svetlana is a legend. this is my new favorite story on the internet, incredible.
Aaron von Frank
August 20, 2024 at 3:15 pmThank you for your kind words! Ducks are special animals.
Ally
July 11, 2023 at 2:57 amThis brought tears to my eyes. My duck, Quinn, passed away two days ago and I found your article because I googled, “why do I miss my duck so much?”
Thank you for writing this and helping me cope with the very real grief that comes with a loss like this. You have reminded me to remember the small sweet things about Quinn and to keep moving forward. Best wishes to you all <3
Aaron von Frank
July 11, 2023 at 10:38 amSo sorry, Ally. You’re in the early, worst part of the grieving process, and it’s going to be difficult. And that’s ok and normal. You’ll come out the other side, and — as you said — you’ll always have the “small sweet things about Quinn” to carry with you. Best wishes to you as well. <3
RACHEL HAGERTY
January 9, 2022 at 5:40 pmWow, this is a beautiful and heartbreaking story all in one. So very sorry for your loss. Svetlana sounds like a very special spirit, who – through your writings, videos and photographs – has managed to touch the lives of people who never had the pleasure of meeting her in person (myself included). Thank you for sharing your story.
Aaron von Frank
January 10, 2022 at 9:44 pmThank you for your kind words, Rachel. She was a special one – we still talk about and miss her daily. Glad to know that her story touched you. 🙂
Lindy van der Meulen
September 27, 2021 at 1:05 pmDear Susan and Aaron, I read your whole story about Svetlana this afternoon September 27th 2021, so some years have passed by for you both since Svetlana had to go to Duck Foraging Grounds elsewhere. I feel sad too for your loss and I think this tribute you have written for Svetlana is very beautiful and does justice to your love. It is a whispered Thank You to her that she shared her life and love with you both, that in itself is a miracle.
The reason I started specifically reading your Duck stories on the Tyrant Farm blog last night was because today I was scheduled to collect 6 runner duck ducklings.4 of them are now 4 and a half weeks old and 2 are 2 and a half weeks old. They have been brooded out by a chicken. The older 4 recognised the peeps coming from under their surrogate Mum and snuggled under her feathers with the new babies, so they consider themselves one group.
I have them here in our garden in a duck house and pen/run that my husband has built for them. We live in North East Netherlands and this coming week the night temperatures will be around 51-52⁰F. Do you think they can stay outside in their coop or should we be considering other options?
Thank you for the beautiful tutorial on lifting, holding, cuddling and stroking ducks. I have given all 6 of our new duckies some of all of that treatment today already and I will continue to do so with thanks to you young Tyrants. It would be wonderful if their characters develop in any way similar to your Svetlana. Much love for all of you, Lindy born November 1953.
Aaron von Frank
September 27, 2021 at 4:21 pmHi Lindy! Thanks so much for your kind words. Svetlana was a special duck and we miss her greatly – as does Jackson, her best friend/partner, who is still with us.
51-52⁰F would probably be fine for 4.5 week old +ducklings if they huddle together. Probably not so for 2 week old ducklings, unless there was a momma duck to keep them all warm. To be safe, we’d advise finding an alternative arrangement that allows them to safely stay warm at night when temps dip below 60⁰F until they have their “teenage” feathers at around 8 weeks old, at which point they can endure much colder temperatures. That means either bringing them into a temporary indoor enclosure or providing an outdoor brooder lamp that is securely set up so that it can’t fall or become a fire hazard.
Hope this helps and isn’t too much of a pain for you and your husband. Also, congratulations on (soon) being owned by ducks!
Jay
March 3, 2021 at 4:27 pmWe have had George our duck that we saved over 10 years ago. Today we had him put to sleep (hence I came across your blog looking for some comfort online as I’m just… there’s no words)
Same with George – he was a pure house duck, had baths, trips away with us, made us laugh, loved cuddles and no one really understands. He’s not a dog or cat.. so it’s hard for anyone who doesn’t have that connection.
Your story just highlighted all I’m feeling right now and I can’t wait for this grief to pass. Miss him so much and send all my love to you guys as well.
Jay & Jayson
Aaron von Frank
March 4, 2021 at 8:04 amJay and Jayson – we’re so sorry for you. It sounds like George the duck had a wonderful and long life, thanks to your care. Yes, we know what you’re going through. Time will help, and you have ten years of wonderful duck memories to cherish. Love to you.
George
February 17, 2021 at 7:03 amMy condolences for Svetlana. So other duck owners experience deep sorrow for losing a beloved bird too. It gives a bit of relief that I am not alone.
I love the wild duck’s logic. “A monster is someone who didn’t bring me food.” They are extraordinary beings.
danielle brandt
January 12, 2021 at 1:49 pmim soo sorry i recently got 2 new ducks i dont really know much about ducks and I would be heartbroken to lose daffy or daisy
Aaron von Frank
January 12, 2021 at 5:49 pmThank you, Danielle. We still talk about Svetlana daily and miss her dearly. We wish she’d been around for our son to get to know. Best of luck to you, Daffy, and Daisy. 🙂
Kaylee
October 28, 2020 at 11:37 amI am sooooo sorry. I am crying right now. This is soo sad.
Aaron von Frank
November 4, 2020 at 7:19 amThanks, Kaylee. Svetlana was a special duck. We’ll always love and miss her.
Teesha
February 26, 2019 at 8:25 pmWow, that made me cry buckets, and pray that we don’t have to go through that anytime soon with our Male Muscovy house duck Zeb.
He has slept with my husband and I on the bed every night of his 6 years of life. We lost his sister Nilly at only 6 months from a genetic disorder which was very traumatic too.
I hope that you all have a better 2019 and know that Svetlana will be in your hearts forever as Nilly is in ours. Hugs, Teesha
Aaron von Frank
February 26, 2019 at 8:40 pmThank you for the kind words, Teesha. Thanks also for being a loving parent to Zeb. He sounds like he lucked into a good home. 🙂
Eeta Lane
February 2, 2019 at 8:38 pmI just lost my duck named Lily, I was her only companion. Lately we got her a drake, she died after lying her first fertilized egg. Now while holding her egg and writing her story online, I was looking for help to hatch, that’s when I landed at Svetlana story. It brought me to tears, I haven’t stopped crying for Lily yet and now Svetlena. I feel your pain and I’m sorry for your loss.
Could you guide me how to hatch this egg. Now I have a female duck and a drake, this female duck is motherly and is capable of hatching eggs. I only have one egg from Lily, am I supposed to separate the drake and duck and then set a nestindoors? Any suggestion would be of great help. Thank you
Douglas R
January 17, 2019 at 2:44 pmTouching tribute. I’m sorry for your loss. I look forward to your health article since I plan to have ducks of my own soon.
Aaron von Frank
January 17, 2019 at 4:25 pmThank you, Douglas. We’ll try to get that out in the next couple of months. Unfortunately, it’s tough writing these types of articles right now because it brings up a lot of painful memories.
Robin Willoughby
January 17, 2019 at 2:44 pmAs I sit here crying…I am overwhelmed with the joy you take in your ducks. The eggs are just happy by-products!
And as a pet owner who has lost many dogs in my life, I can only guess at your sorrow. And I am so so sorry for your loss. May you find near as much happiness with Pippa!
Aaron von Frank
January 17, 2019 at 4:25 pmMuch appreciated, Robin.