Mushroom Grow Kit – Blue Oyster (Pleurotus Ostreatus)

Description

💙 Monster Blue Oyster Ready-to-Fruit Mushroom Kit Guide

The Blue Oyster (Pleurotus ostreatus) is undoubtedly one of the all-time most popular mushrooms to grow at home! Our commercial-quality “Monster” strain is famous for producing fruitbodies with an amazing, vibrant steel-blue hue when young, which gracefully develop into magnificent, large grey mushrooms as they mature.

Please note: The exact size and shape of your Blue Oysters may vary slightly depending on the time of year and your specific growing environment.

For a visual walkthrough of setting up an Oyster kit, check out our YouTube video guide here: 👉 https://www.youtube.com/watch?v=Es5p2EaDkyg

🛠️ Getting Started: The First Flush Blue Oysters are side-fruiters, meaning they love to grow straight out of the side of the bag. The easiest way to fruit them is to leave the bag right inside its cardboard box!

• Step 1: Prep the Box – Remove the perforated cut-out from the front of your kit box to expose the plastic bag inside.

• Step 2: Score the Bag – Using a sterilised knife (wiped with isopropyl alcohol or heated with a flame), cut an “X” into the plastic mushroom bag. Make the “X” roughly the same size as the hole in the box.

• Step 3: Keep it Humid – Mist (give it a light spritz) 1 to 3 times per day with filtered or cooled boiled water. Crucial tip: Only spray the outside of the plastic flaps to create humidity; don’t spray the substrate block directly!

🌤️ Ideal Growing Environment

• Temperature: This specific variety is a winter strain. They prefer a low-to-medium climate and require stable temperatures between 10-16°C for the best fruiting results. The colder it is, the deeper blue the caps will be!

• Light: Mushrooms need enough natural, indirect light to read a book by. Don’t lock them in a dark, confined space or cupboard, or they will grow long and skinny looking for the sun.

• Humidity: Keep it high, ideally over 70-80%. The plastic flaps from your “X” cut will help trap this moisture beautifully.

🍄 Tips & Troubleshooting

• Colour Changes: Don’t be alarmed when your vibrant steel-blue pins begin to turn pale or grey as they grow larger! This is completely natural as the mushroom matures and the caps stretch out.

• Rapid Growth: Just like standard oysters, these are fast movers! Once they start pinning, they will double in size rapidly, so keep a close eye on them.

• Watch the watering: Once your mushrooms actually start forming (fruiting), avoid misting the fruits directly to prevent bacterial blotch. Just mist the plastic flaps.

• Fruiting in the wrong spot? If you notice mushrooms trying to fruit underneath the plastic instead of out of your “X” cut, your room is too dry. The mushrooms are seeking the trapped moisture inside the bag.

🔪 Harvesting

• When to pick: The best time to harvest is when the edges of the largest caps in the cluster are still curled slightly downward. As soon as the caps start to roll outward and upward, the mushroom is about to drop its spores. You want to harvest just before this happens!

• How to pick: Harvest the whole cluster at once by gently twisting the mushrooms away from the block.

• Clean up: Make sure you remove all leftover bits of mushroom flesh from the block so nothing is left behind to spoil.

♻️ Preparing for Later Flushes

• Rest Period: After your first harvest, let the block rest for 2 to 3 weeks before you start misting it with water again. Later flushes always take a little longer to come through!

• Rehydrating: If your block feels really light after that first flush and rest period, it needs a good drink.

  • Remove the block from the box.

  • Submerge the bag in cold water for 5-12 hours to rehydrate it.

  • The next day, tip out any excess water completely.

  • Put the bag back into the box, but face it the other way (so the old “X” is at the back).

  • Cut a brand new “X” on this fresh side and resume misting!

Please note this culture is sold with our Mushroom Spawn and Cultures sale agreement. By purchasing you agree to this agreement