$5.00 $10.00
The Black Pearl Oyster or Black Pearl King Oyster is a oyster mushroom (Pleurotus ostreatus) hybrid from Japan. It is the result of a cross between a European and an Asian Pleurotus ostreatus. It grows and looks much like Pleurotus eryngii (King Oyster) in the beginning as it matures it will look more like a Pleurotus ostreatus (Pearl Oyster).
Black Pearl Kings are less finicky than Pleurotus eryngii, and are able to grow very well indoors. Grows on the same substrates as pearl or king oysters such as masters mix or hardwood sawdust (HWFP). It is a fast substrate colonizer that fruits dense, meaty mushrooms.
Fruiting Conditions:
Temperature: 50-68F
Humidity: 85-90%
Includes 10ml liquid culture syringe + sterile needle
Recommended use: Use the syringe to inoculate your own liquid culture media to expand the mycelium into many syringes worth.
Storage: Can be left at room temperature for up to 6 months, and refrigerated for longer than 1 year.
Feb 1, 2026
Products are always of top quality. One of ESTY’s top.
Jan 2, 2026
Great customer service. Vigorous clean mycelium
Dec 24, 2025
Product as described, fast shipping! A+++
Dec 21, 2025
Quality culture in a professional package at a great price. Thank you!
Dec 15, 2025
Everything arrived on time, the quality is excellent — I highly recommend the seller!