Can You Grow A Mushroom From Another Mushroom

Yes, you can grow a mushroom from another mushroom, and it’s actually one of the most rewarding projects you can start in your kitchen or backyard.
 
If you’ve ever wondered how to grow a mushroom from another mushroom, the process is simpler than you might think, and it all starts with understanding the magic of mushroom spores and mycelium.
 
Essentially, every mushroom you see is just the fruiting body of a much larger underground network, and when you grow a mushroom from another mushroom, you’re essentially cloning that network to produce new fruiting bodies.
 
In this post, we’ll break down exactly how growing mushrooms this way works, what tools you need, and the best methods to successfully grow a mushroom from another mushroom right at home.
 
Let’s dig into the fascinating world of mushroom propagation.
 

Why You Can Grow A Mushroom From Another Mushroom

The reason you can grow a mushroom from another mushroom comes down to biology, specifically the incredible resilience of fungal tissue.
 
When you hold a mushroom, you’re looking at the reproductive structure of a fungus, but the real “body” of the organism is the mycelium, a web of thread-like cells that lives in the soil or wood.
 
To grow a mushroom from another mushroom, you take a piece of that fruiting body and use it to start new mycelium, which then colonizes a substrate and eventually produces more mushrooms.
 
It’s like taking a cutting from a plant, except the mushroom cutting is full of living cells that are just waiting to expand into a new colony.
 
Here are the main ways you can grow a mushroom from another mushroom, each with its own advantages and level of hands-on effort.
 

1. Using Spores to Grow A Mushroom From Another Mushroom

The most natural way to grow a mushroom from another mushroom is by collecting its spores, which are essentially microscopic seeds.
 
Every mushroom releases millions of spores from its gills or pores, and these spores are the genetic building blocks for future mushrooms.
 
To grow a mushroom from another mushroom using spores, you can place a fresh mushroom cap gill-side down on a piece of paper or glass and wait a few hours.
 
The spores will drop and form a visible print, and you can then use that spore print to inoculate a sterile growing medium.
 
This method is great for beginners because it’s inexpensive, but it does require patience and a bit of sterile technique to avoid contamination.
 

2. Tissue Cloning to Grow A Mushroom From Another Mushroom

If you want a more reliable way to grow a mushroom from another mushroom, tissue cloning is the gold standard.
 
With tissue cloning, you take a small piece of the inner stem tissue of a fresh mushroom and place it on a nutrient-rich agar dish.
 
The mushroom’s cells will start to grow mycelium within days, and once that mycelium is established, you can transfer it to a larger substrate like grain or sawdust.
 
This method ensures you’re growing a genetic copy of the original mushroom, which is fantastic if you found a particularly tasty or large specimen.
 
To grow a mushroom from another mushroom via cloning, you only need a sterilized knife, a fresh mushroom, and a sterile environment like a still-air box.
 

3. Using Stem Butts to Grow A Mushroom From Another Mushroom

For a super low-tech approach, you can grow a mushroom from another mushroom using the stem butt, which is the tough base of the stem that often gets discarded.
 
Many growers toss the stem butt into a container of moist cardboard or coffee grounds, and the mycelium from the base will happily colonize the new material.
 
This is a fantastic way to grow a mushroom from another mushroom if you’re working with store-bought mushrooms and don’t have access to lab equipment.
 
The stem butt method is slower than tissue cloning, but it’s almost foolproof and uses materials you already have at home.
 

Step-By-Step Guide To Grow A Mushroom From Another Mushroom

Now that you understand the different methods, let’s walk through a simple, practical process to grow a mushroom from another mushroom using the tissue cloning technique.
 
This is the most reliable route and gives you the highest chance of success, especially if you’re growing gourmet varieties like oyster or shiitake mushrooms.
 
Follow these steps carefully, and you’ll be amazed at how easy it is to grow a mushroom from another mushroom.
 

1. Gather Your Supplies

To grow a mushroom from another mushroom, you’ll need a fresh mushroom, a sterilized scalpel or knife, a disposable Petri dish with agar, 70% isopropyl alcohol, and latex gloves.
 
Make sure your workspace is clean, and wipe down all surfaces with the alcohol to minimize the chance of mold spores ruining your culture.
 
You’ll also need a still-air box, or at least a clean, draft-free room, to work in.
 

2. Sterilize and Prepare the Mushroom

Pick a healthy, fresh mushroom with no bruises or spots, as any damage can harbor bacteria.
 
Carefully break the mushroom in half by hand to expose the inner tissue, and avoid touching the exposed area with your fingers.
 
The inner stem flesh is sterile because it’s protected by the outer skin, so this is the ideal place to take your sample from.
 

3. Transfer the Tissue to Agar

Using your sterilized scalpel, cut a small piece of the inner tissue, about the size of a grain of rice, and place it onto the center of your agar dish.
 
Seal the dish with parafilm or tape, and then label it with the mushroom type and date.
 
Within a few days, you should see white, fuzzy mycelium growing out from the tissue, which proves you can grow a mushroom from another mushroom successfully.
 

4. Expand Your Mycelium

Once your agar dish is fully colonized with mycelium, you can transfer small chunks of that mycelium to sterilized grain jars.
 
The grain will act as a food source, allowing the mycelium to multiply rapidly and become a “spawn” that you can use to inoculate a larger substrate.
 
This spawn is the bridge between your original mushroom and the eventual harvest, and it’s the key to scaling up your grow.
 

Common Mistakes When You Grow A Mushroom From Another Mushroom

Even though it’s a natural process, there are a few pitfalls that can stop you from successfully growing mushrooms this way.
 
Here’s what to watch out for so you don’t waste your time or supplies.
 

1. Dirty Conditions Cause Contamination

The number one reason people fail to grow a mushroom from another mushroom is contamination from mold or bacteria.
 
Your mushroom tissue is sterile inside, but the moment you expose it to open air, it’s vulnerable to airborne spores that can outcompete your mycelium.
 
Always use a still-air box or flow hood, and sterilize your equipment thoroughly before you start.
 

2. Using Old or Dried Mushrooms

You can only grow a mushroom from another mushroom if the mushroom is fresh and alive.
 
Dried or frozen mushrooms have dead tissue, and there’s nothing left to culture.
 
Aim to use your mushroom within a few days of harvest, and store it in the fridge in a paper bag until you’re ready to clone it.
 

3. Not Giving Mycelium Enough Time

Growing mushrooms is a waiting game, and mycelium is slow.
 
Don’t be discouraged if you don’t see visible growth for a week, because the mycelium is busy establishing itself before it spreads visibly.
 
Give your culture two to three weeks before you judge whether you were able to grow a mushroom from another mushroom.
 

So, Can You Grow A Mushroom From Another Mushroom?

Yes, you can grow a mushroom from another mushroom, and it’s a fantastic way to produce an endless supply of your favorite fungi.
 
Whether you choose spore prints, tissue cloning, or the humble stem butt method, the biology is on your side.
 
The key is to keep things clean, use fresh mushrooms, and let the mycelium do its patient work underneath the surface.
 
Once you master the basics of how to grow a mushroom from another mushroom, you’ll never look at a grocery store mushroom the same way again.
 
So gather a fresh mushroom, prep your tools, and get ready to watch nature’s most amazing recycler turn a single fungus into a thriving new colony.
 
Happy growing, and enjoy every delicious harvest that comes from your efforts.