Description
Native Pearl Giant Oyster Mushroom Grow Kit
Scientific Name: Pleurotus ostreatus sapidus
Skill Level: Easy
Growing Time: Incubation and first pins typically in 7-10 days after placed in fruiting conditions (varies with temperature)
Ideal Fruiting Temp: 20°C–30°C
Fruiting Style: Side Fruiting
Important: Check your fruiting temperature before purchasing and ensure you can provide the temperature this species needs.
About This Kit
3KG Kit
Yield: 1.4-1.6kgs across 3 flushes
Our 3 kg kits are made fresh to order, just like real mushroom farms use. No fancy box, no sitting in cold storage for weeks. Skipping the packaging keeps your cost down by $10, and we pass that saving straight to you. We call these kits “almost ready to fruit”.
Lead time applies to this kit. The lead time shown above the “Add to Cart” button is the time needed to prepare your order. A product showing as “in stock” means it can be prepared within that lead time, not that it is ready to ship immediately.
What’s Inside
Everything you need is included. Just spray water and follow the simple instructions.
Our substrate is a special Master’s Mix: a blend of sawdust, lupin pellets and water, inoculated with about 300g of millet grain spawn to give your mushrooms the best possible start.
Microplastic Free
Soy Allergen Free
Gluten Free
Our bags: Your kit is made with Unicorn grow bags, tested to not leach microplastics into your substrate.
Native Pearl Giant Oyster: Why It’s Special
The Pearl Giant Oyster (sapidus) is a large, productive Pleurotus ostreatus variant prized for its tolerance of warmer fruiting temperatures and its attractive, dense fan-like clusters.
Pearl Giant Oysters have a mild, slightly sweet flavour and a meaty texture that works well in sautés, soups and stir fries. They are fast growers and great for both beginners and small scale producers.
Shelf life: Use fresh for the best texture, or refrigerate for 3–7 days.
Growing Conditions
Humidity: 85–95% during pinning and fruiting to ensure firm, well formed caps.
Light: Indirect ambient light is enough. A regular day and night cycle helps cap formation and colour.
Air: Gentle fresh air exchange once pins form to avoid CO₂ buildup. Balanced airflow prevents long stems and encourages compact caps.
Temperature: 20°C–30°C.
More Than One Harvest?
Yes. Multiple flushes are common, depending on your growing conditions.
Common Mistakes to Avoid
Temperature outside the ideal window: Fruiting too cool or too hot for this strain reduces yields or causes poor shape. Aim for 20°C–30°C during fruiting.
Humidity swings: Sudden drops or heavy condensation pooling harm pins. Keep humidity steady.
Poor fresh air exchange: Too little fresh air gives long, thin stems, while too much direct draught dries the block. Balance airflow after pins form.
What if pins form inside the bag?
Don’t worry. 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, and the internal pins will be naturally aborted as they don’t have space to grow.
All mushrooms produce spores as part of their natural growth cycle. Some people may be sensitive or allergic to spores, so be mindful of where you grow them. Harvesting earlier, as the caps begin to flatten, will help you avoid heavy sporulation.
This kit introduces you to Stage 3: Fruiting, the final step in mushroom growing. To explore all three stages (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.
Checkout all our Spray and grow kit 3 Kg kits.
Checkout out our fine Misting Spray Bottle to produce tiny droplets and keep humidity high. The size of droplets formed can easily be evaporated, and this constant evaporation signals mycelium to pin.
Could not fruit the bag, or was it contaminated? Send us a photo or call us, and we will help you resolve the issue.
Bag Dimensions:
3 kg spray and grow kit: H 18 W 13 L 24
