Black Oyster Kit
4.8335 customer reviewsGrow delicious Black Oyster mushrooms at home with this beginner-friendly grow kit. Just open, mist, and harvest in 7–14 days. Produces multiple flushes of fresh, meaty gourmet mushrooms — no experience or equipment needed. Made in Canada.
Black Oyster Kit
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Nature Lion is based in Brantford, Ontario
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SKU: 627987915846
Category: Mushroom Grow Kits Canada
Product Details
Black Oyster Mushroom Grow Kit — Grow Fresh Gourmet Mushrooms at Home
Growing your own mushrooms has never been easier. The Nature Lion Black Oyster Mushroom Grow Kit lets you harvest fresh, flavourful Pleurotus ostreatus right from your kitchen counter — no garden, no greenhouse, and absolutely no prior experience required. This is one of the most popular mushroom grow kits in Canada for a reason: Black Oysters are hardy, fast-growing, and incredibly rewarding for first-time growers.
Each kit is handcrafted at our CFIA-licensed facility in Brantford, Ontario, using premium Canadian ingredients. From the moment it arrives at your door, you are just days away from your first harvest of fresh gourmet mushrooms.
What Makes This Kit Special
- Truly beginner-friendly — no lab equipment, no sterile technique, no guesswork
- Multiple flushes — harvest two or more crops of mushrooms from a single kit
- Fast results — see pins forming within days and harvest within 7–14 days
- Made in Canada — produced in-house at our Brantford, Ontario facility
- Year-round growing — grows indoors in any season at normal room temperature
How to Grow Your Black Oyster Mushrooms
This beginner mushroom kit is designed so that anyone can grow mushrooms at home on the very first try:
- Open — Cut an X-shaped slit in the bag or fold down the top to expose the substrate.
- Mist — Spray the opening with water 2–3 times per day to keep humidity high.
- Harvest — In 7–14 days, your Black Oyster mushrooms will be ready to pick and eat.
After your first harvest, continue misting and the kit will produce additional flushes over the following weeks. Many growers get two to three full harvests from a single kit.
What You’ll Harvest
Black Oyster mushrooms are prized by chefs for their rich, savoury, meaty flavour and velvety texture. They are incredibly versatile in the kitchen — perfect for stir-fries, pasta dishes, soups, risottos, and as a hearty meat substitute. When seared in butter, they develop a deep umami flavour that elevates any meal.
Each flush produces a generous cluster of dark-capped oyster mushrooms that look as impressive as they taste.
Ideal Growing Conditions
- Temperature: 15–21°C (59–70°F)
- Humidity: High — regular misting is all you need
- Light: Indirect natural light or ambient room light
- Location: Kitchen counter, laundry room, basement — anywhere out of direct sunlight
What’s Included
- Fully colonized Black Oyster mushroom substrate block, ready to fruit
- Simple growing instructions
Ready to Explore More?
Try our other mushroom grow kits including Lion’s Mane, Pink Oyster, White Oyster, Chestnut, and Blue Oyster. If you love growing Black Oysters and want to scale up, check out our Black Oyster Mushroom Spawn for larger projects.
Product description by Andrew Langevin · Founder, Nature Lion · Contributing author, Mushroomology (Brill, 2026)
Customer Reviews
Priya S.
April 5, 2026
So easy my kids did most of it themselves! We got three flushes total. Will definitely be ordering again.
Ryan W.
April 5, 2026
Good kit, easy to follow instructions. Got a decent first flush but the second was smaller. Still worth it for the freshness.
Sarah M.
April 5, 2026
Absolutely loved this kit! First flush came in just 8 days and we harvested about 350g. The black oysters were gorgeous and tasted incredible sautéed with garlic.
Steve Tripp
February 28, 2024
I bought 4 kits, White Oyster, Black Oyster, Chestnut and Lion Main. All same environment same treatment. The White Oyster and Lion Mane grew, but the Black Oyster didn't produce anything. The Chestnut was also a dud. I work, so was only able to water twice/day before and after work. It was my first mushroom venture.
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Sheldon Semeniuk
August 22, 2023
Uhh….. 2 weeks and nothing so far. Just watering a box. Bought this at a greenhouse and overspent. Lesson learned.
Mike Ditz
January 4, 2023
Black Oyster Mushroom Grow Kit
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Justine Dipietro
December 22, 2022
I ordered a kit for each of my colleagues for Christmas this year - they were all so thrilled when they opened their gift and they are very anxious to grow their mushrooms. These kits are an amazing gift idea for friends and family of any age and I highly recommend them!
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Cole Thorne
November 22, 2022
Love the product and would definately buy again!
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Jenessa Oldford
June 20, 2022
The Black Oyster Mushroom kit was so easy and fun!! Will definitely be trying to get a second harvest and I'd love to try the pink oysters too! I swear you could LITERALLY just sit there and watch the grow. Every hour they just got bigger and bigger!
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Paul C
April 7, 2022
Had a great experience with this kit, and really appreciated the fantastic customer support too. The oysters pinned after about a week or so, and then they extended into the room like something extraterrestrial. Couldn't get over how cool they looked. After harvesting them, I made a primo cream sauce. The mycelium is recolonizing the substrate, so it looks like I'll be getting a second flush. Good times!
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Dustin Wiesner
April 6, 2022
These black oysters are absolutely delicious. Excellent growth on the first flush and going for a second here shortly. Fried up nice with some butter and garlic, even my picky 10 year old daughter wanted seconds of them 👍
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Heather Haliburton-Smith
April 3, 2022
Great Fun to watch them grow and double in size daily! Fascinating and Delicious too!
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Jennifer M.
March 15, 2022
Amazing black oyster mushroom kit! Harvested over 2 pounds of fresh gourmet mushrooms in just 10 days. The instructions were clear and the kit came ready to grow. Perfect for beginners wanting to grow their own organic mushrooms at home.
Louise M
March 11, 2022
I had ordered a box of oyster mushrooms to try. I was very satisfied with the results. Within a few days, mushrooms began to appear. The customer service was exceptional and any questions I had were answered within 24hours. I would highly recommend ordering from Nature Lion Inc.
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Alex M.
February 23, 2022
The instructions were clear and I had great success.
Luisa Steen
January 21, 2022
This was a Christmas present so I can’t attest to how well it’s doing. Myself and the present receiver did find the instructions a little lack luster for details especially concerning light or dark growing but they were very happy to receive it and can’t wait to get growing
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Josh Kelba
January 11, 2022
Simple, fast, fun, and delicious! This cool little kit is a great introduction to mushrooms and now a must have on the kitchen countertop. Thanks Nature Lion, mush love!
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Clare R
January 5, 2022
Good News: my pink oysters were ready to harvest in only 8 days! Bad News: I got enjoyment from the process for only 8 days. lol I was pleased that the mushrooms looked as good as advertised, and knowing that they're organic is a definite plus as well. The kit was a gift from a co-worker, and because I am very happy with the experience I am paying it forward and buying one for another co-worker. ☺
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Kirill Khromov
December 7, 2021
Great
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Erin Sandilands
November 21, 2021
We got two harvests large enough for a meal for two. So delicious!
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Jaclyn Genovese
August 17, 2021
This Black Oyster Mushroom Kit was so fast and the process and instructions were beyond easy to follow and for the mushrooms to grow!
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Kathy Akehurst
June 10, 2021
I've just finished devouring my first flush of black oysters and they were SPECTACULAR! Such a difference in taste, when you can grow and harvest them as you want them. The kit is fabulous....we couldn't STOP it from fruiting🥰 It wasn't our first kit from you, and it won't be our last! Many thanks for all your hard work😊👍
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Cynthia Bruce-Baker
January 4, 2021
I ordered 2 kits - one for myself and one for my best friend as her Christmas gift. The kits arrived WAY ahead of schedule, and chats with Andrew were always positive and uplifting. My girlfriend and I are really excited to reap the benefits of our sowing... :) Looking forward to seeing new kits from you and your team Andrew!
Customer
November 30, 2020
I have the black oyster mushroom kit and had ordered it off of Nature Lion's kickstarter. This was such a pleasure to watch the mushrooms grow out of the box and am currently trying to cultivate a second growing! Highly recommend gifting this kit ... especially during the Holidays as it'll bring tons of anticipation for delicious mushrooms into any house!
Customer
November 30, 2020
I Fantastic product / activity. Highlight recommended for any demographic. Watching the mushrooms grow for the first time is a treat, particularly since we don’t see them so often in the wild. And they’re delicious too! Must try atleast once. - Ali https://www.aliumair.com
Ashish
November 25, 2020
I am so happy using this Kit! Its so exciting to watch them grow and know what you are going to eat. Thank you team for this amazing product ❤️
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Joyce Leung
November 24, 2020
I loved this mushroom growing kit! It was so fun to watch and a great way to teach kids how food grows! I would highly recommend this!! Bonus, the packing peanuts are biodegradable - details like this make Nature Lion an even better company!! Way to go!
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Sean Foo
November 24, 2020
Great product. I love the fact you can use again 2 times after the first harvest. Love the business. You have more respect for the food when you grow it. I cant wait for the lions mane!
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Customer
November 24, 2020
It's really a nice simple kit for all ages that I simply adore ^_^! Not much luck on the second round of harvest 😅, but I had a lot of fun watching them bloom the first time round. ( The real life version of mushroom garden game 😉😂). And there's something simply satisfying, watching them grow, to personally harvesting them, to prep and eating them. Really delicious! 😋 An absolute high recommendation as a fun gift for all ages 😉
Sonia
November 24, 2020
What an amazing way to grow your own organic mushrooms from the comfort of your home! Such a great idea to keep us all busy during the pandemic. It’s fun and most importantly it’s SO EASY! Highly recommend it for everyone!
MIKHAIL RAMTAHAL
November 24, 2020
Amazing customer service and excellent product. So delicious and such an innovative way to bring organic mushrooms into your home.
Renee Pleschke
November 24, 2020
Loved watching the mushrooms grow! It was exciting everyday to care for them (which was so simple!) and to see how they changed as the days went on. It was great to be connected to the food on my plate. Nature Lion is an amazing company with a fantastic product. Highly recommend
Paul Kd
November 1, 2020
This kit is a great idea to for a few reasons. It is a great way to show kids where a food item comes from, especially if you live in a place where a garden is difficult or impossible. It provides you with a super tasty side dish while doing that, and it makes a great gift- something people wouldn't necessarily think to buy for themselves, but will certainly enjoy growing and eating. I ordered the first one mostly for the kids and they loved spraying it every day, watching for the first signs of growth. When the mushrooms poke their heads out, it is really just days before they are ready to harvest so it is super gratifying to the kids tending them. The first crop was more than enough for a good portion for each member of a family of four, and we're hoping our second crop will find it's way out sometime soon. We'll definitely be buying a few more kits as gifts for Christmas, and we'll order very soon. My guess is that they'll be overwhelmed with orders and I want to make sure we get ours! Great idea, and a brilliant execution. We wish Nature Lion all the best with this venture! PK
andrew langevin
September 9, 2020
These kits grow really well and the mushrooms were delicious. We would 100% buy again!
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Skylar B.
July 3, 2020
Quick shipping and the kit arrived ready to go.
Sarah M.
January 8, 2020
Love it!
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