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Organic Lion's Mane Mushroom Grow Kit Fruiting Block












Skill level | Beginner |
Grow location | Indoors |
Grow speed | 1.5 to 2 weeks |
Kit shelf life | 6 months (refrigerated) |
Kit dimensions | 6in H x 9in W x 6in D |
Kit weight | 5 lbs |
Fruiting temps | 55-70°F |
Our lion’s mane (Hericium erinaceus) fruiting block features a strain that produces plump, dense, shaggy mushroom clusters. Lion's mane mushrooms are highly versatile and can be enjoyed cooked, dried, extracted, or even steeped as tea! In addition to making an amazing meat substitute, it is an absolute culinary dream both in texture and flavor. That’s because, when cooked, it has a consistency and flavor similar to crab meat.
Though slightly harder to get flushes than oysters or shiitake, lion's mane fruiting blocks are still a great mushroom for confident beginners. They colonize quickly and are relatively reliable producers. It's important to note that Lion's mane can be prone to drying out if the ambient humidity is too low, so we recommend that you water it generously or grow your fruiting block in a humidity-controlled chamber, like a monotub or martha tent.
“5 of the Best Lion’s Mane Mushroom Recipes”
Upon receiving your kit:
Remove kit from the shipping box as soon as possible. Then, unfold the top of the bag, making room for air space. It's also important to check and confirm that the filter patch is not obstructed. This will help the organism breathe and continue to thrive until you are ready to grow your fruiting block!
Scroll down for guides on growing, storage, cooking, and more.
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For the majority of mushroom species, all that is needed to initiate fruiting (or begin the growth cycle) is a change in environmental conditions -- specifically humidity, light, temperature, and changes to oxygen and CO2 levels.
For best results:
We recommend growing your lion’s mane block in a fruiting chamber (like a monotub or martha tent) as a controlled environment will decrease the risk of contamination and increase the chances of success.
Creating optimal conditions:
The environmental parameters for lion’s mane can be found on this page under "Temp, Humidity & CO2 guide" and on page 9 of our fruiting block instruction booklet.
Preparing your block:
Tightly fold excess plastic back and place the block face up.
How to initiate fruiting:
- Making small holes in the plastic encourages even growth which can be harvested easily and cleanly. We recommend cutting 3-4 small X’s on one plane of the bag.
- Lion’s mane can be top or side fruited depending on preference; side fruiting can encourage elongated spines.
Special considerations:
- Lion’s mane is prone to fruiting within the bag before being exposed to air; we do not recommend cutting holes where these fruits have begun to form.
- Avoid direct moisture (during pinning and fruitbody phases) and excess humidity (during fruitbody phase) to prevent rot.
Harvesting your mushrooms:
Mushrooms should be harvested after teeth have formed but before they elongate. Good shelf life; will begin to yellow as they dry out.
Growing different blocks together:
With some compromise, many different species of mushrooms can be grown together in a fruiting chamber. First, consider the temperature range of the mushrooms you desire to grow, and second, the CO2 sensitivity. Humidity ranges overlap for the majority of species. We encourage you to experiment with many different groupings!
Troubleshooting:
Having issues with unusual growth, stunted growth, or no growth at all? Refer to pages 16-18 of our fruiting block instruction booklet.
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Temperature 55-70°F | 13-21°C Humidity (Phase 1: Primordia) 90-95% Humidity (Phase 2: Fruitbody) 80-90% CO2 Sensitivity (Phase 1: Primordia) 500-700 ppm CO2 Sensitivity (Phase 2: Fruitbody) <1,000 ppm - Primordia - The earliest recognizable stage of fruitbody development. Also known as “baby mushrooms” or “mushroom pins.”
- Fruitbody - A fully grown mushroom, the reproductive structure of the organism in which the spores are produced.
- CO2 sensitivity - When CO2 levels are too high, yields will decrease, stems will become long and stringy, caps will be small, and/or growth will halt.
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If you don't plan to use immediately, you can refrigerate your block for up to 6 months.
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"5 of the Best Lion's Mane Mushroom Recipes"
Its unique flavor and consistency make it ideal as a seafood substitute in recipes. We like to slice it into rounds and pan-fry it in olive oil or butter. We also recommend ripping it up and making vegan or vegetarian crab cakes with it. You can find some amazing recipes online!
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If you’re going to consume home-grown mushrooms, make sure to cook your fresh mushrooms thoroughly with heat. If it is your first time eating this species, it is best to start with a small amount to check for allergies, even if cooked.
Mushrooms grow spores as they develop. This is a natural means of reproduction. This is when people with allergies or compromised immune systems may want to consider putting fruiting mushroom kits outdoors or in a well-ventilated area. Spores in mushrooms sometimes cause respiratory irritation. In rare cases, spores may also cause irritation for some non-allergic or non-immunocompromised mushroom growers. If you are one of them, it is recommended to reduce the overall spore load by harvesting mushrooms while they are still in their younger growth stages.
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So far so good
So far it is growing as expected.. so no complaints out of me

Big and Beautiful
Super reliable. Easy to grow.

Lions Main
Nothing like yummy Lions Main! Excellent growth!

Lions mane
Wonderful experience very easy to grow:)

Good but Smaller Yield than I Expected
Overall growing this Lion's Mane was a good introduction to homegrown mushrooms. I got these as a gift for my father. While he was very pleased... I was a little underwhelmed by how much he actually harvested (4oz). Most reviews (that I've read) rave about the ease of Lion's Mane and they show photos of enormous yields. So, I expected something extraordinary. What happened was definitely a success... but I wasn't AMAZED. Since he's a newbie, It's probably our fault (not the grow kit's). Perhaps, I should have gotten him something with better instructions?


Fantastic beginner mushroom!
I had heard sort of mixed reviews of lion's mane as a beginner mushroom, but I decided to take a chance on it and I am so glad that I did! Not only was it incredibly easy (harvested just two and half weeks after arrival) but it tolerated some less than optimal growing conditions as we have been dialing in our Martha tent. Our first flush was a full 14oz of delectable, tender mushrooms that needed nothing more than some butter, salt, and pepper to be transcendent. I'm really hoping for a second flush of these!

Excellent Gift Idea
I’ve discovered Lions Mane fruiting block makes excellent gift giving choice for your mushroom loving friends. Have tried various varieties from a number of producers but these are just the best, both for production and flavor. Because they grow so large and so quickly even my very young grandsons can’t wait till I send another fruiting block to their house. I’ve ordered from a number of producers and in my experience North Spore products are the best.

First time grower
This was my first time trying to grow any type of mushroom. The Lion's Mane fruiting block is outstanding! Very easy to use, just follow the included instructions. It's been 3 weeks & I have a huge, beautiful shroom. I'll be harvesting in the next few days. Can't wait to taste!

Wonderful!
These lions main are doing great came up very quickly full of pins and now growing like wild fire. Super simple and quick results. Getting ready to harvest the first flush. Yum! So excited!!!

Love
Fruited quickly and produced very large, healthy mushrooms.