How to Grow Mushrooms from Spores: All You Need To Know (2024)

How to Grow Mushrooms from Spores: All You Need To Know (1)

Growing your own mushroom may be a bit intimidating because it is not as straightforward as regular plants, which means there is a different process involved.

This is your step-by-step guide on how to grow mushrooms from spores.

All You Need to Know About Mushrooms

Just to be clear, we are talking about mushroom, the fungus that you eat, not the one that gets you high!

A mushroom is actually the fruit of a fungus, which is neither a plant or an animal, but a kingdom on its own.

This is why

The mushrooms have their own growth system. Instead of growing from seeds like plants, mushrooms grow from spores, which they also produce.

If you’re wondering why you can see mushrooms growing on logs and other moist surfaces, that’s because of the spores.

Here’s the deal

The spores are located under the mushroom cap. There are millions of them in just one mushroom as they are microscopic in size.

The wind usually blows the spores away, and that’s basically how mushrooms are spread. That’s why you see them on logs and trees, and sometimes just about anywhere.

Although

You can also cultivate mushrooms. That’s usually the mushrooms that we eat.

There are around thousands of different types of mushrooms. A lot of them are edible while some are poisonous.

How to Grow Mushrooms from Spores: All You Need To Know (2)

Here are some of the most popular mushrooms:

Button

This is probably the most common type of mushroom. It is also a popular culinary ingredient. It has an earthy taste.

Cremini

Also known as baby portobellos, this type of mushroom has a mild flavor.

Morel

This is a popular ingredient in French cuisine. It looks like a honeycomb. As for the taste, it’s earthy and nutty.

Oyster

It’s named after the popular seafood. This has a sweet taste to it.

Porcini

This type of mushroom has a nutty flavor. It is popular in Italy.

Shiitake

This is a popular Asian mushroom that has a savory taste to it.

Reasons to Grow Mushrooms

Now that you know mushrooms are not grown like a plant, is it worth it?

YESSIRREE!

There are actually so many good reasons to grow mushrooms.

1. Healthy

Mushrooms are 92% water. It also has carbohydrates, protein, and less than 1% fat. A 100-gram mushroom only has 22 calories, which means it’s also good for people trying to lose weight.

It is rich in vitamin B, which includes riboflavin, niacin, and pantothenic acid. There is also phosphorus, potassium, and zinc in it.

In some cases

The mushroom may also carry vitamin D. But this part usually depends on how the mushroom is harvested as vitamin D is created when the produce is exposed to sunlight.

The mushroom’s ergosterol is converted to vitamin D following UV ray exposure.

2. Delicious

In general, mushrooms have muted flavors. But when you add it with other ingredients, it could make a great dish.

Different mushrooms have different tastes. Each type of mushroom could enhance the flavor of any type of dish.

How to Grow Mushrooms from Spores: All You Need To Know (3)

Mushroom, for example, is a popular pizza topping. It has been used in soups, risottos, and pastas, among others.

Also

Fresh mushrooms are so much more delicious than the store-bought ones.

3. You can save money

If you grow your own mushrooms then you don’t have to buy them in the groceries. Therefore, you can save money.

4. You become self-sustainable

You are basically growing your own food here. In a way, you are being self-sufficient.

The good thing is that there are so many ways to cook mushrooms. You will never get tired of eating them.

Basically

You don’t need to go to restaurants to enjoy fancy food since the mushroom is a versatile culinary ingredient.

5. It’s fun!

Okay, it may not be fun for everybody.

Garden enthusiasts, though, will feel a similar kind of satisfaction when they see the mushrooms grow just as they will experience enjoyment when they see their plants flourish.

6. They are also beautiful

Yep! Depending on which kind you plan to grow, mushrooms are actually pleasant to look at. The button ones may be plain but when growing in a bunch, they could be glorious to look at.

Morels and oysters are quite gorgeous, too.

So, are you convinced yet?

Those six reasons ought to make you want to grow your own mushrooms already. Next up, the steps…

How to Grow Mushrooms from Spores: All You Need To Know (4)

How to Grow Mushrooms from Spores

In growing plants, you will need soil and seeds. In growing mushrooms, you will need compost and the spores.

The spores should be mixed with materials they could feed on like grain, sawdust, straw, and wood chips. When you mix the store with the said materials, you make what is called a spawn.

The environment

Mushrooms prefer the dark. When it comes to the atmosphere, mushrooms prefer a cool yet humid environment.

So, at home, you could grow mushrooms in the basem*nt. Under the sink works, too. If people frequent the basem*nt, make sure that the mushrooms are in a closet where they are not exposed to light.

Good rule of thumb:

Between 55℉ and 60℉ should be a good temperature.

Now, the following steps are generic steps to grow mushrooms. You can also grow mushrooms based on the instruction for specific types.

But generally, the following steps will do:

1. Create your spawn

This is going to be quite complex. The easiest way is to just buy the spawn or a mushroom kit. If not, here are the steps:

  • Cut up cardboard into small pieces.
  • Pour boiling water on the pieces of cardboard.
  • Drain and dry the cardboard bits.
  • Get a container with a lid and poke some holes on it.
  • Put your cardboard in the container and make it compact.
  • Cut the stalk / stem butts of the fresh mushrooms and put them on top of your cardboard pieces.
  • Cover with another layer of the moist cardboard pieces.
  • Wait for colonization.
How to Grow Mushrooms from Spores: All You Need To Know (5)

Usually

You will have spawn in less than two weeks. You will know when you have the spawn because the entire cardboard has been colonized by the spawn–the color will change.

2. Prepare your materials

  • Tray or box with depth of at least seven inches
  • Spawn
  • Mushroom compost
  • Heating pad
  • A little soil

3. Fill box

Put six-inch compost in the box. Then, you can sprinkle the spawn on top.

4. Heat the box

Put a heating pad under the box so that the compost will have a temperature of around 70℉. You can do this for around three weeks or until you see something growing.

What you will see is called mycelium. It’s a white thread-like structure.

5. Cover with soil

Top the material with an inch of potting soil. Buy a potting soil from the store because this has nutrients in them. You don’t want the mushrooms to be contaminated.

You may now adjust the heat to around 55℉ and 60℉.

6. Keep soil moist

Don’t water the box like you do with plants. You can just spray it with water.

7. Harvest

There should be mushrooms sprouting about in a month or less.

There is a proper procedure for harvesting. Don’t pull them out or you will damage the fungus that could still provide new mushrooms.

What to do?

Instead, you can cut the stalk with a sharp knife.

This box will just keep on giving. You can almost harvest every day. Fresh mushrooms are the best!

How to Grow Mushrooms from Spores: All You Need To Know (6)

Summary

Mushrooms are healthy and low in calories. They are also really delicious. What more, fresh mushrooms are more delicious than store-bought ones. You should really grow mushrooms at home.

So, how to grow mushrooms from spores? They are quite easy actually. The hard part is creating the spawn, but this is something that you can just buy. Once you have all the elements of growing mushrooms, you can harvest within a month.

Mushrooms are one of the most versatile culinary ingredients in the world. You can make a soup out of it or use it as a topping for pizza. There are also different kinds of mushrooms and you can easily choose the one with the flavor that suits your dish best.

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How to Grow Mushrooms from Spores: All You Need To Know (2024)

FAQs

What do mushroom spores need to germinate? ›

Air always contains thousands of fungi spores or conidia, in a metabolically inactive reversible rest period which enables them to survive adverse environmental conditions. When spores fall on wet materials, the majority of spores do not germinate. They need, in addition to water, a physical or chemical activator.

How do you trigger mushroom growth? ›

Fresh air, humidity, light, and temperature are the four main environmental variables that trigger fruiting from fully colonized substrates.

What are the stages of the mushroom growth cycle? ›

There are four basic stages to the life cycle of a mushroom: Spore germination, colonisation, fruiting, and sporulation. The process is easy to understand if you look at it one step at a time.

How long does it take for mycelium to grow on agar from spores? ›

After a week to ten days, mycelium grows from the tissue and colonizes the agar. Great care should be taken to select a fruiting body of the highest quality, size, color, shape or any highly desired characteristic.

How do you activate spore germination? ›

Low-level-heat-resistant spores mostly do not require heat activation for efficient nutrient-induced germination. Under laboratory conditions, spores of B. subtilis are often heat activated (HA) for 30 min at 70°C to increase their germination responses to nutrients (51,–53).

How many days does it take for spores to germinate? ›

The majority will germinate within 5 minutes after exposure to a high level of an appropriate germinant [172]. The remainder will typically follow suit after another 15 minutes, yet there are superdormant spores that are capable of significantly delaying germination for hours to days [173].

What speeds up mushroom growth? ›

Gypsum is a mineral that helps speed up the mushroom growing process in small amounts. A teaspoon of gypsum is added to the supplemented sawdust mix, which also includes hardwood sawdust pellets, wheat bran and water.

Why are my mushroom spores not growing? ›

Severe lack of fresh air &/or light: otherwise healthy block! Mushrooms are the opposite of plants in that they 'inhale' oxygen and 'exhale' CO2: much like us humans. Oyster mushrooms in particular produce a lot of CO2 as they grow, and need a steady supply of fresh air to develop normal fruit bodies.

How long does it take mushroom spores to colonize? ›

Colonization occurs after inoculation. This is when the mycelium will start to take over the grain that was inoculated with spores. This period usually lasts between 3 to 6 weeks depending on strain and environmental conditions. Ideal conditions for this phase are in a dark place and temperature between 72 F – 80 F.

How long do mushroom spores survive? ›

Spores in the atmosphere may survive for days or weeks or possibly longer (31–34). Careful data tracking the lifetimes of individual spores in the air are lacking; spores are not easy to observe or manipulate in nature.

What is the lifespan of a mushroom mycelium? ›

Once mature, a mushroom can live from just a couple of days to many years. The mycelium network, once established, can last for hundreds, even thousands of years.

What is the timeline for mycelium? ›

It takes anywhere from two weeks to two months to grow mushroom mycelium. At Host Defense®, we grow 17 different species.

What makes mycelium grow faster? ›

Light: While mycelium doesn't require light to grow, a small amount can help stimulate growth. 5. Nutrition: Using a nutrient-rich substrate can also enhance growth. Remember, it's important to maintain sterile conditions to prevent contamination.

What does mycelium look like when it starts growing? ›

You will typically see growth within 4-6 days, and your mold will be finished when it looks completely white, which typically takes around 2 weeks. Watch out for mold or any growth that looks unusual. Mycelium is white and dense looking, any other colored growth, or spotty growth is likely contamination.

What agar is best for mycelium? ›

Malt Extract Agar (MEA)

It contains malt extract, which provides the necessary nutrients for the growth of the mycelium. MEA is suitable for the germination of spores and the culture and maintenance of mushroom mycelium.

What does spores need to grow? ›

Among the fungi, spores serve a function analogous to that of seeds in plants. Produced and released by specialized fruiting bodies, such as the edible portion of the familiar mushrooms, fungal spores germinate and grow into new individuals under suitable conditions of moisture, temperature, and food availability.

What do spores need to reproduce? ›

Think of them like seeds; they are made to grow a new plant and all they need is the proper environment to thrive. Spores are an asexual form of reproduction; the plant or fungus doesn't need to mate with another plant or fungus to form these particles.

What does mushroom mycelium need to grow? ›

Supplemented sawdust/wood pellets:

This is what most specialty mushroom growers use for a fruiting substrate. Mixing sawdust or wood pellets with wheat bran or soybean hulls helps to achieve a high nutrient and cost effective food source for the mycelium.

Do spores need light to germinate? ›

Germinating spores

As the spores don't contain chlorophyll they feed off substances other than light to gain the nourishment they need to germinate. Suitable materials range from sawdust and straw to wooden plugs and grain.

References

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