Pleurotus ostreatus var “Black Pearl”- This is a relatively new variety of oyster which is a cross between an Asian and European Pleurotus ostreatus. In higher CO2 conditions the stems become meaty and thick like a king oyster (see images below); however, this variety is much easier to fruit than king oyster. See what phenotypes you get and share with us!
Black Pearl Oyster fruits best between 60-70°F but can fruit in the 50’s.
Fruited from 50-60°F in modified monotub with King Oyster thick stem phenotype.
Same block as above but second flush, also fruited from 50-60°F in modified monotub with more of a canonical Oyster cluster phenotype.
d3dcomplx grew these King Oyster thick stem phenotype Black Pearl Oysters from a Ready-to-Fruit block
All gourmet liquid cultures (LCs) are provided with a 16g needle (in the manufacturer’s packaging) and come in 10 mL capped syringes. They will be labelled and are grown in a 1-2% malt extract solution. Shake well before use.
Additional information
Weight
30 g
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This arrived fast and is growing quickly on grain and in liquid culture. Will be back for sure. Paid with Venmo. I had a little trouble submitting the payment, but I received immediate help and got it all squared away.
Wed Jun 11 2025 04:50:00 GMT+0000 (Coordinated Universal Time)
Ordered a dozen different gourmet LC’s. The syringes were full of healthy mycelium and neatly labeled.
I put each one on agar, they all produced vigorous clean mycelium. Highly recommend.
Paid via cash in mail which was a great discount and freebies. Communication with MMM was quick and professional. His website is easy to navigate and clearly states his policies, shipping, payments, communication, etc. Those web pages should answer nearly all questions. I will be a returning customer in the future.
Mon Dec 25 2023 12:33:04 GMT+0000 (Coordinated Universal Time)
This was part of my first order ever from MMM. Fast and professional customer service along with the shipping experience, product was exactly what I was wanting.
Wed May 03 2023 20:12:45 GMT+0000 (Coordinated Universal Time)
MMM is my favorite shop to buy from for a few reasons. The customer service is incredible, the quality of the products are unbeatable, and the selection is diverse. I've never had anything other than a great experience. I've recommended MMM to many friends and I'll definitely be back again and again.
Tue May 02 2023 01:59:53 GMT+0000 (Coordinated Universal Time)
This was my first time ordering any sort of mushroom culture and I don't think I will go anywhere else. I ordered this along with a few other strains of gourmet mushrooms. 2 weeks after inoculation I am already seeing a substantial amount of mycelium and looks like it may be ready for fruiting in another couple of weeks. Order came very discreet and was shipped out promptly. I even received 2 free syringes of culture with my order!
Wed Dec 07 2022 01:45:30 GMT+0000 (Coordinated Universal Time)
MMM was quick to reply to all and any messages i asked. Shippment was quick snd painless. I will be coming back for more for sure! All around great experience and the prices are really good.
Fri Feb 25 2022 00:44:09 GMT+0000 (Coordinated Universal Time)
Fruited from 50-60°F in modified monotub with King Oyster thick stem phenotype.
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