How to Grow Trumpet Mushrooms: A Step-by-Step Guide


Are you wondering what king trumpet mushroom benefits could mean for your health? Look no further. Rich in nutrients and boasting an array of health-promoting properties, king trumpet mushrooms are more than just a culinary delight; they are powerful allies in supporting cardiovascular health, weight management, immune function, and cognitive well-being. Dive into our comprehensive guide to discover how these substantial fungi can contribute positively to your diet and lifestyle.


king trumpet mushrooms

King trumpet mushrooms, incredibly versatile and a delight to the palate, originate from northern China, eastern Russia, and North America. They grow in large clusters, often spotted in overlapping clusters in hardwood forests, painting an enchanting picture. Their sturdy white stems and relatively flat, golden brown caps set them apart, making them the largest within the oyster mushroom family.

When it comes to their culinary use, king trumpet mushrooms have a savory umami flavor with a subtle nutty undertone that enhances a wide range of dishes. The mushrooms’ chewy texture makes them a desirable ingredient, seamlessly blending into dishes like King Trumpet Mushroom Carpaccio, Po’ Boy Sandwiches, and Crispy Mushroom Calamari. They are also a substantial ingredient in stews and scrambles, contributing umami flavors that take the dish to the next level.

While the culinary versatility of king trumpet mushrooms is well known, their health benefits often go unnoticed. These mushrooms are a treasure trove of nutrients, offering significant nutritional value. They are a good source of protein and niacin, essential nutrients for maintaining a balanced diet. Compared to other mushrooms, king trumpet mushrooms stand out for their nutrient-rich profile.

But that’s not all. King trumpet mushrooms have been shown to:

  • effectively reduce cholesterol levels

  • support weight loss

  • contribute to the support of the immune system

  • protect the brain

This makes them a valuable dietary option for individuals seeking to regulate their weight and enhance their cardiovascular well-being. Moreover, they enhance overall immune and cognitive well-being. In essence, the king trumpet mushroom is not just a fun mushroom to cook with but also a potent ally for your health!

Ideal Growing Conditions

Ideal growing conditions for king trumpet mushrooms

Having understood the impressive background and health benefits of king trumpet mushrooms, we will now focus on their cultivation. Growing these mushrooms requires certain conditions to be met, replicating their natural habitats in temperate and subtropical regions.

The first factor to consider is the temperature. The recommended temperature range for cultivating king trumpet mushrooms indoors is 59°F–65°F (15°C–18°C). If you’re growing them outdoors, you should strive to maintain a similar temperature range and work towards creating a clean, contamination-free environment.

Humidity also plays an integral role. King trumpet mushrooms need high humidity levels for primordia initiation and subsequent development. The fruit development often requires humidity levels exceeding 80% to ensure optimal growth.

Lastly, king trumpet mushrooms require 10 to 14 hours of indirect or artificial light daily to thrive. Sufficient lighting is necessary to develop high-quality fruit bodies and maximize yields.

Growing King Trumpet Mushrooms at Home

Now that we’re familiar with the ideal growing conditions for king trumpet mushrooms, it’s time for the exciting part - cultivating them at home! This can be a rewarding and straightforward process, enabling you to enjoy fresh, home-grown mushrooms while also providing an engaging hobby.

The cultivation process involves six main steps:

  1. Gathering supplies

  2. Preparing the substrate

  3. Inoculating the substrate

  4. Incubating

  5. Fruiting

  6. Harvesting

Each step holds importance and contributes to the successful cultivation of the mushrooms. As we proceed, we’ll explore each of these steps in detail, offering you an all-inclusive guide to growing king trumpet mushrooms at home!

King trumpet mushrooms

Step 1: Gather Supplies

The initial step in cultivating mushrooms involves assembling the required supplies. These include:

  • Hardwood sawdust

  • Grains

  • Straw

  • Wood

These are the main components of your growing substrate. Other oyster mushrooms, such as the blue oyster, golden, pink oyster mushrooms, and yellow oyster mushrooms, can also be cultivated using similar supplies, including blue oyster mushrooms growing. In fact, king trumpet mushrooms and blue oysters are just two of the many varieties you can grow at home.

In addition to the substrate, you’ll need jars or containers to house your mushrooms, a spray bottle for misting, and sterilization equipment like a pressure cooker or autoclave. Mushroom spawn, essentially the ‘seed’ that grows into mushrooms, can be obtained from suppliers. As for containers, jars and buckets make excellent choices due to their durability and ease of cleaning. Sterilization equipment is vital as it helps to keep your substrate free from unwanted organisms that could hinder your mushroom growth.

Step 2: Prepare the Growing Substrate

Once you have all the supplies, the subsequent step involves preparing the growing substrate. The most suitable substrates for cultivating king trumpet mushrooms are hardwood sawdust supplemented with wheat bran, and low nutrient, cellulose-rich substrates such as straw or sugar cane bagasse. Pink oyster mushrooms can also be cultivated using similar substrates.

To prepare the substrate, it first needs to be sterilized. This process eradicates all contaminants, including spores, thus creating an uncontested environment for the mushrooms to flourish. There are several methods to achieve this, including exposing them to temperatures higher than 250°F (121°C) for at least 2 hours or submerging the substrate in water for at least a week.

Step 3: Inoculate the Substrate

Once the substrate is ready and sterilized, the mushroom spawn can be introduced. This carries the specific strain of mushroom mycelium and is crucial for the cultivation process.

To inoculate the substrate, follow these steps:

  1. Use supplemented hardwood sawdust in autoclavable grow bags.

  2. Enrich the sawdust with 10-15% wheat bran.

  3. This mixture promotes the effective growth of King Trumpet mushrooms.

  4. Control the amount of spawn during the mixing process for optimal distribution.

  5. Pre-condition the spawn to room temperature before mixing.

  6. Manual mixing using hands can also promote rapid and consistent growth.

Step 4: Incubate

After inoculating the substrate, the incubation phase begins. Here are the key steps:

  1. Place the inoculated substrate in a dark environment.

  2. Maintain an optimal temperature range of 59°F to 65°F.

  3. Maintain a humidity level of approximately 85%.

These conditions help the mycelium to colonize the substrate fully.

The incubation phase typically lasts 10-14 days, during which the mycelium fully colonizes the substrate. You can track the growth progress during incubation by closely observing the mycelium formation on the substrate and looking for the emergence of pin-like structures and small mushrooms, which indicate successful colonization.

Step 5: Fruit

When the substrate is completely colonized, the mushrooms begin to fruit. This step involves exposing the colonized substrate to indirect light and maintaining high humidity levels. The recommended temperature range for optimal fruiting of King Trumpet mushrooms is 59°F to 65°F, while the ideal humidity level falls between 85 and 95 percent relative humidity.

Fruiting generally commences within a period of 4-8 days following exposure to these conditions. You’ll know that your mushrooms are successfully fruiting when you start seeing the emergence of pin-like structures and small mushrooms. These are signs of successful mushroom fruiting in King Trumpet mushrooms.

Step 6: Harvest

After your diligent efforts and patience, you can finally harvest your king trumpet mushrooms! These mushrooms are typically ready for harvest when they reach a length of a few inches, although they can grow to 6 to 8 inches. A key indicator for readiness is when the cap is nearly fully open and becomes flat.

The most effective method for harvesting king trumpet mushrooms without compromising the mycelium is to gently twist them off their base. It is advisable to refrain from pulling the mushrooms straight off, as this may cause harm to the underlying mycelia. And the best part is, it is possible to obtain another harvest if temperature and humidity are well-controlled after the initial harvest.

Mushroom Growing Kit

Mushroom Growing Kit

If this process seems overwhelming, fear not! An easier way to begin your home cultivation journey is through mushroom grow tent kits.

The Mars Hydro VG80 Grow Tent Kit, tailored for mushroom cultivation, offers an ideal environment for growing mushrooms. This tent, made from durable 1680D canvas, features robust SBS zippers and reinforced seams for longevity. It is designed to maintain optimal conditions for mushroom growth, with features such as waterproofing and a detachable tray for water management. The kit includes LED lights with a Waterproof IP65 rating, ensuring efficient operation in humid conditions. It's easy to set up, cost-effective, and offers operational convenience with remote control capabilities via a dedicated app. The tent's portability and space-efficient design make it suitable for various environments, and it comes with customer support and warranties for added assurance.


We’ve embarked on an enlightening journey through the world of king trumpet mushrooms, exploring their origins, characteristics, and health benefits. We’ve discovered the ideal conditions for their growth and learned how to cultivate them at home, step by step. We’ve also touched on the convenience of mushroom grow tent kits for those who prefer a more simplified approach.

Growing king trumpet mushrooms at home is a rewarding experience, allowing you to enjoy fresh, home-grown mushrooms and appreciate their unique characteristics firsthand. Whether you’re a mushroom enthusiast, a home cook looking to enhance your dishes, or simply someone looking for a fun and engaging hobby, there’s no better time than now to embark on your mushroom cultivation journey!

Frequently Asked Questions

What is another name for the king trumpet mushroom?

Another name for the king trumpet mushroom is the French horn mushroom. It is also known as the king oyster mushroom or eryngii.

What are the medicinal properties of King oyster mushroom?

King oyster mushrooms have various medicinal properties. They can support the immune system, regulate cholesterol levels, possess anti-inflammatory and anti-cancer properties, and protect the heart against cardiovascular disease. Additionally, they may help in preventing osteoporosis and arthritis, maintaining blood pressure, boosting bone mineral density, and providing protection against cancer.

How much of a trumpet mushroom can you eat?

You can eat the entire trumpet mushroom, from its stem to its cap. Enjoy it in your favorite dishes!

Can you eat the stem of a king trumpet mushroom?

Yes, you can eat the stem of a king trumpet mushroom as the entire mushroom is edible.

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