Description
About this Kit
Complete Kit: Everything you need is included—just mist water and follow the simple instructions.
This kit uses a special Master’s Mix, a blend of sawdust, soy pellets, and water. It’s inoculated with about 300 grams of organic rye or millet grain spawn to give your mushrooms the best start.
We keep things simple and affordable by sending you a fresh, made-to-order bag, just like real mushroom farms use. No fancy boxes, no sitting in cold storage for weeks. This helps keep your cost down by $10; we pass that saving directly to you. We call these kits ‘almost ready to fruit’.
Blue Pearl Oysters (P. columbinus) are prized for their striking blue caps that fade to grey as they mature. They’re among the most visually stunning oyster varieties. These mushrooms thrive in cooler fruiting conditions and produce quick, abundant cluster flushes with sweet, earthy flavor and meaty texture. They are also high in antioxidants and contain lovastatin compounds that may support healthy cholesterol levels.
Humidity: Keep above 85% RH during fruiting — mist 2–3 times daily.
Light: Needs indirect light to maintain color and form; avoid direct sunlight. 12 hour on and 12 hour off cycle is best.
Air: High fresh air exchange is required.
Storage: Store in a paper bag in the fridge—best consumed within 3-7 days—or dry/freeze dry for longer shelf life.
Blue Pearl Oyster Grow Kit – Elegant & Flavorful
Pleurotus columbinus, commonly known as the Blue Pearl Oyster, stands out with its beautiful steel-blue caps and tight cluster formations. These mushrooms shine in lighter-colored dishes and salads for their unique visual appeal. When cooked, they offer firm texture and sweet oyster-like flavor with subtle umami—and even impart a bluish tint to sauces when lightly sautéed.
Thriving at cool temperatures (15–20 °C), Blue Pearls are perfect for indoor and temperate climate cultivation. Their fast colonisation and fruiting make them a delight for both beginners and seasoned growers, delivering multiple harvests per kit with consistent results.
Step-by-step Instructions & Post-Harvest Care
IMPORTANT— This variety benefits from additional fresh air; ensure good ventilation to avoid long stems and thin caps.
Step 1 – Let It Grow (3 Weeks)
*Take the bag out of its packaging.
*Stand it upright and do not cut it yet.
*Please keep it away from direct sunlight, windows, fans, AC, or a wardrobe.
Let it sit like this until full white (colonised)
Need to Wait?
If you’re not ready to start fruiting you can store the bag in the fridge for up to a month. Do not store it in the fridge until the bag is fully colonised.
Step 2 – Fruiting & Harvest
Once colonised, start fruiting:
1. Cut: Make a 10 cm “X” or slit on side of the bag where you want the clusters to form.
2. Mist: Mist the cut area 2–3 times daily and maintain humidity above 85%. Stop misting when baby mushroom start to form.
3. Harvest: Mushrooms typically appear within 7–10 days. Harvest when caps still have slightly turned-under edges by gently twisting the cluster at the base.
Flushes: Expect 2–3 flushes. After each harvest, lightly soak (casing or block) for a few hours, then rest for a week before continuing.
Common Mistakes to Avoid
Low Humidity: Dry conditions lead to cracked caps and poor cluster formation.
Poor Air Exchange: CO₂ buildup results in long stems and small caps.
High Temperature: Above 20 °C slows fruiting and dulls the blue color.
Strong Light: Direct sunlight can dry out the block and damage pins.
💡 Tip: To keep your fruit bodies compact and vibrant, maintain cool temperatures and fresh airflow—this preserves the gorgeous blue hue and firm structure.
What to do if pins form inside the bag
Don’t worry. Just ignore the internal pins. Gently fold the top of the bag to push out excess air, cut a small “X” in the side of the bag (where you want the mushrooms to grow), and begin misting that spot daily. Mushrooms will start fruiting from that cut. The internal pins will eventually be aborted naturally, as they don’t have space to grow.
Checkout out our fine Misting Spray Bottle to produce tiny droplets and keep humidity high. The size of droplets formed can easily be evaporated , this constant evaporation signals mycelium to pin.
Want to Learn More?
This kit introduces you to Stage 3: Fruiting, the final step in mushroom growing.
To explore all three stages (including how mushrooms grow from spores to harvest), check out our
Educational Mushroom Growing Kit.
Checkout all the Mushroom Growing kits Available in Our Spray and grow 3 Kg range.
Could not fruit the bag, or was it contaminated? Send us a photo or call us, and we will help you resolve the issue.
