Skip to product information
1 of 1

Blue Oyster Grow Kit

Blue Oyster Grow Kit

Regular price £24.95 GBP
Regular price Sale price £24.95 GBP
Sale Sold out
Tax included. Shipping calculated at checkout.
Weight
Bundle Packs
Type
1 Pack
Save 25%
2 Pack
Save 25%
3 Pack
Save 30%
6 Pack
Save 35%
12 Pack
Save 40%
How do subscriptions work?
  • Get exclusive deals

    Subscribe for unique discounts
  • Edit your subscription anytime

    Edit products, delivery schedule and more
  • No commitment

    Easy to cancel if it’s not for you
  • FREE UK DELIVERY
  • LIFETIME GUARANTEE

Our Blue Oyster (Pleurotus ostreatus) grow kit is specially designed to yield thick, dense, and luxuriant mushrooms with ease. These kits come ready to fruit and harvest, meaning there’s no need to faff around inoculating and colonising your own substrate, you can get straight to the fun part!

🍄 Pre-colonised fruiting block that is ready to fruit

⚖️ Grow large yields of up to 1kg+ of fresh Blue Oyster

✨ No space required to grow & requires minimal effort

🗓️ Harvest mushrooms quickly within 2 weeks

🛡️ It’s risk–free with our lifetime guarantee 

Want to learn how to grow mushrooms with this kit? See our online guide here.

View full details

Description

THE HASSLE FREE, READY TO FRUIT SOLUTION TO GROWING BLUE OYSTER AT HOME

Blue Oyster mushrooms have been prized for centuries in Eastern cultures for their impressive nutritional and wellness benefits. Historically, they were even cultivated as a source of sustenance in ancient Japan and valued for their potential to support heart health and promote overall vitality.

In recent years, Blue Oyster mushrooms have been highlighted for their cardiovascular benefits. Scientific studies reveal that they contain compounds called statins, which have been shown to help regulate cholesterol levels. Additionally, Blue Oyster mushrooms are rich in antioxidants and polysaccharides, which may strengthen the immune system and support the body's natural defenses.

Beyond their health potential, Blue Oyster mushrooms are highly prized in the culinary world for their tender texture and mild, earthy flavor. Versatile and easy to cook, they add a unique depth to a wide range of dishes, from stir-fries and pasta to risottos and soups. Their satisfying meaty quality makes them a fantastic substitute for traditional proteins, bringing both flavor and nutrition to any meal.

Growing your own Blue Oyster mushroom and reaping its incredible benefits has never been easier with our Blue Oyster Grow Kit. Whether you’re a seasoned grower or a complete beginner, our kit takes the guesswork out of mushroom cultivation and turns it into a fun, straightforward process. Say goodbye to complex setups and hello to thick, dense, and luscious clusters of mushrooms, ready to be cooked, extracted or made into a tea.  

Our kit comes with everything you need in one convenient package: a pre-colonised fruiting block that is ready to go right out of the box—no need for messy inoculations or waiting periods. Simply follow our easy step-by-step guide, and watch your mushrooms grow! With minimal effort and space required, you’ll be harvesting beautiful, therapeutic Blue Oyster mushrooms in no time. 

The process is simple: 

  1. PREPARE THE BAG: Place your Blue Oyster grow kit in indirect sunlight, ideally at 18-24°C (64-75°F). Cut an "X" on one side of the bag to expose the mycelium to air.
  2. MAINTAIN HUMIDITY: Maintain a humid environment by misting the kit daily or using a humidity tent. After 7-10 days, mushrooms should reach full size—gently twist to harvest at the base.
  3. HUMIDITY-CONTROLLED CHAMBER: For optimal growth, place the fruiting block in a chamber like a MonoTub or Martha tent, as this will help to maintain optimum fruiting conditions  

Gone are the days of having to trawl through decade-old forum posts to figure out the fascinating but often confusing science that is growing mushrooms. Our step-by-step, easy-to-follow guide ensures a successful harvest, eliminating guesswork and making the whole process a breeze. 

THE BENEFITS

  • Beginner-friendly, no prior experience or knowledge required 
  • Harvest up to 1kg of fresh Blue Oyster from a single block 
  • Ready-to-fruit block make the process quick and easy 
  • It’s risk–free with our lifetime guarantee 
  • Save £££ by growing your own mushrooms at home 
  • No space required to grow & is discreet with no smells 
  • Blue Oyster mushrooms are packed with immune-boosting and antioxidant-rich bioactive compounds  

INGREDIENTS

Good ingredients make for good grow kits. That is why we only use our 100% natural and organic grain and masters mix substrate in our kits. We only use the best, natural ingredients for our products, so you get the best mushrooms. 

Our proprietary substrate blend is a mix of optimally hydrated millet grains, milo grains, hardwood pellets, soy hulls and gypsum. This mixture is carefully hydrated to field capacity and sterilised in a computer-controlled steam autoclave for 2 hours at 121°C. The result is an optimal 6:1 substrate to spawn ratio. This is then inoculated with our own Blue Oyster liquid culture, the substrate providing the perfect nutrient rich environment for mycelium, ensuring rapid colonisation, large yields, and minimal risk of contamination. After a period of a few weeks the substrate is fully colonised and ready to ship to customers.

WHAT’S INCLUDED

  • 1.25kg or 2kg (depending on selection) of Blue Oyster Grow Kit, packaged and sterilised in industry leading Unicorn grow bags 
  • Ultra Fine Mister 
  • Our Lifetime Guarantee

WE DO NOT INCLUDE

Physical copy of the growing guide - you can find our online step-by-step mushroom growing guide here, as well as some of our own tips and tricks for optimising your grow. We highly recommend reading it before purchasing!

STORAGE 

Please aim to use your Blue Oyster Grow Kit soon after receiving. If you are not using it right away, store in the fridge. Stored this way, your kit should last at least 3 months. 

  • EASY TO USE

  • MASSIVE YIELDS

  • SET & FORGET

  • SAVE MONEY

1 of 4

What people are saying

  • INJECT BAG

  • WAIT 4-6 WEEKS

  • HARVEST MUSHROOMS

1 of 3

MARTIAN MUSHROOMS

  • Can grow multiple mushrooms
  • QC lab tested for contaminants
  • Easy to use with help from our mycologists
  • Lifetime guarantee protected
  • Monster yield MS-4 substrate blend
  • Turbo colonisation times
  • AutoGrow Tek set & forget growing
  • Fun step by step guided process

GENERIC GROW KITS

  • Only grows a few species
  • Untested for contamination
  • Difficult to use without any on hand help
  • Not protected if something goes wrong
  • Lower yielding substrate
  • Slow colonising weak genetics
  • Lots of steps to get mushrooms
  • Frustrating to use with long process

FAQ

DOES THIS COME WITH SPORES OR CULTURE SYRINGE?

There is NO spore or culture syringe included with the Blank Grain Spawn Bag. It is non-inoculated to allow you to inject the species of your choice. Liquid cultures for gourmet varieties are available here.

HOW MANY SYRINGES DO I NEED?

You only need 5ml of spore or liquid culture solution for one uninoculated bag. We don’t recommend using more than 5ml per bag, because too much liquid can throw off the moisture content within the bag.

Fruiting kits don't need to be inoculated as they are pre-colonised and ready to fruit.

You can store any used solution in the fridge for future use. Stored that way, they’ll keep for many months

HOW IS THIS GROW KIT USED?

Fortunately, it’s really easy to use, you just need to follow our guides by clicking here

HOW DO I STORE THIS GROW KIT?

Ideally do not store your grow kit and inoculate right away, if you are not using right away keep your kit in the fridge.

WHAT MUSHROOMS CAN BE GROWN WITH THIS KIT?

Our Martian Mushrooms kits are designed with versatility in mind and can support the growth of various edible and ornamental mushroom species. Some popular types of mushrooms that can be grown with our kits include Oyster mushrooms, Shiitake mushrooms, Lion’s Mane, Reishi, Chaga, Turkey Tail and many others that are legal and safe for cultivation at home.

It’s important to note that while our kits can technically support the growth of various types of mushrooms, we strongly advise against and do not condone the use of our kits for the cultivation of mushrooms that are illegal to grow in your country. This is due to the legal restrictions in many regions, including the UK where we are based, it is illegal to cultivate certain species of mushrooms.

At Martian Mushrooms, we are committed to promoting responsible and legal use of our products. We reserve the right to refuse service to anyone suspected of intending to use our products for illegal purposes. Always check and comply with your local laws and regulations regarding the cultivation and possession of mushrooms. Any customer service requests regarding the cultivation of illegal species will be ignored. 

CAN I GROW MULTIPLE TYPES OF MUSHROOMS WITH THE SAME KIT?

We dont recommend growing more than one type of mushroom per kit. Growing multiple types of mushrooms may result in poor flushes.

WHERE DOES THIS PRODUCT SHIP TO?

Please refer to our delivery details 

HOW LONG DOES IT TAKE TO GROW?

It will depend on a few different factors, mainly temperature. But it will range from about 4-8 weeks.