Sumo Gardener

How to Grow Portobello Mushrooms at Home in 2020

Are you planning to grow portobello mushrooms? Did you know that portobello mushrooms are nutritious foods? If you are one of the many who is planning to produce these type of plant, then knowing how to grow portobello mushrooms is essential.


How To Grow Portobello Mushroom at Home

What Are Portobello Mushrooms?

One of the best mushrooms that can be consumed is the portobello mushroom. This type of mushroom belongs to the family of Agaricus and are known to be indigenous to the North American and European countries.

how to grow portobello mushrooms at home indoors


These mushrooms have brown caps and are firm and substantial, wherein their flesh is meaty and dense, which makes them perfect for roasting and grilling. They are often seen in vegetarian burgers. They are an excellent source of vitamin B and as well as minerals, such as copper and selenium. This is the reason why they are often consumed along with other types of foods.

Get to know some of the nutrition. Get to Know How to Grow Portobello Mushrooms at Home that you can get from consuming portobello mushrooms, before you start growing them in your yard.

Portobello Mushrooms Nutritional Value


One of the essential nutrients that portobello mushroom has is Vitamin B. Niacin, and Riboflavin is also found in this mushrooms, which makes it perfect to be included in your daily diet. Some of the other vitamins that you can get from consuming this mushroom are vitamins K, D, C, and A.


People who are looking to increase the protein that they are consuming will benefit from eating portobello mushrooms. The reason behind this is because, for every a hundred gram of grilled mushroom, you can get 4.3 grams of protein. This is 9% of the recommended daily intake that you need.


Eating portobello mushrooms will provide you with the minerals that your body needs daily. Some of the minerals that you can get are magnesium, zinc, iron, manganese, potassium, phosphorus, selenium, and copper.

Growing portobello mushrooms at home



For every a hundred gram of grilled mushrooms, you can get 2.2 grams of fiber. This is the same amount that you can get from eating one slice of wheat bread.

Portobello Mushroom Calories

People who are counting their calories will love portobello mushroom because this is low in calories. In fact, a hundred grams of grilled mushrooms can only give you 35 calories. This mushroom is also fat-free, cholesterol free and only contains little sodium.

Above are the nutrients that you can get from consuming this type of mushroom and the reason why more and more people are wondering how to grow portobello mushroom.

Growing Portobello Mushrooms

There are two ways on how you can develop this type of mushroom, you can either grow it indoors or outdoors, depending on your preferences. The good thing about this mushroom is that you can just purchase the handy kit. This kit is complete with all the things that you need, just make sure that the kit is placed in a dark and cool area.

how to grow portobello mushrooms at home indoors


Here’s a video on how you to grow portobello mushrooms.

How to Grow Portobello Mushrooms Indoors

You can follow the steps below to setup and grow your own portobello mushrooms at home, which will take a little bit of work to setup.

Alternatively you can purchase portobello mushroom grow boxes at Amazon and other online retailers now. Which takes out a lot of the hassle and is easy and clean.

Growing kit for portobello mushrooms in a box at home

via Amazon

portobello mushroom at home growing kit


Growing your portobello mushroom indoors will require you to have some newspaper, peat moss, compost and a tray. The tray that you have should measure 4 x 4 in feet and 8 inches in depth. Once you have all these things, you can start growing your mushrooms, by following these steps below.

Filling with Compost

best fertilizer for growing portobello mushrooms at home


Using the tray, fill it up with based seasoned manure compost, about 6 inches in the tray. Start sprinkling the compose with spores and mix them together before tamping them down lightly. Once done, you can place the tray in an area that is dark, until you get to see the white like tale growth.

Adding Peat Moss

adding peat moss for growing portobello mushrooms at home


The next thing that you need to do is to place a layer of peat moss (Get here on Amazon) and cover it with newspaper. You need to mist the tray twice every single day for a couple of weeks. Once done, you can start removing the paper so you can check the mushrooms if it has already white little heads. If you don’t see any, you can put the newspaper back and continue misting it for a week.


Typically, once you have removed the newspaper, you can start harvesting them immediately. You also have the option to wait for them to grow bigger, if you want larger mushroom. Just make sure to keep the room temperature at 65 to 70 degrees Fahrenheit.

How to Grow Portobello Mushroom Outdoors

Now when growing portobello mushroom outdoors, you need to make sure that the temperature outside will not exceed 70 degrees Fahrenheit during the day and temperatures during the night won’t drop below 50 degrees Fahrenheit.

Raised Garden Bed

The first thing that you need to do is to create a raised bed that measures 4 x 4 feet and 8 inches in depth. Once done, you can fill it with 6 inches of based compost and cover it with a cardboard and a black colored plastic. This will help the bed to be sterilized, and you need to do this for two weeks.

growing portobello mushrooms at home in raised beds


Sprinkling of Mushroom Spores

After a couple of weeks, you can start removing the cover and sprinkle spores (get portobello mushrooms spores here) on the top part of the compost before mixing them. You can leave them for two more weeks and wait until you see some white film webbed to appear from the surface of the soil. This only means that your spores are starting to grow.

Adding Peat Moss

Start adding peat moss to the compost and cover the top with newspaper. You need to mist the soil using distilled water and continue doing it twice every single day for ten whole days.

However, you must control amount of water. If it exceeds the need, there are some problems which may occur, such as the development of mosquitoes. As a result, you should look into a mosquito preventing tool in order to protect you and your family.

Harvesting Portobellos

Again, you can collect the mushroom depending on the size that you like.

These are the ways on how to grow portobello mushroom indoors and outdoors, depending on your preferences. Follow the tips above for you to be able to grow your own portobello mushrooms successfully. In this way, you will get all the nutrition that this mushroom has, which are all good for your body.

Start planting your portobello mushrooms today for you to be able to reap its benefits.​

About the Author Ann Katelyn

I'm Ann Katelyn, Creator and Chief Author of Sumo Gardener. Since I was a child I've always been fascinated with plants and gardens, and as an adult this has developed into my most loved hobby. I have dedicated most of my life to gardening and started Sumo Gardener as a way to express my knowledge about gardening with the hope of helping other people's gardens thrive.

follow me on:

Leave a Comment:

1 comment
Add Your Reply