Urban Spore

Growing Blue Oyster Mushrooms

blue oyster mushroom grow kit

What Are Blue Oyster Mushrooms?

The stunning bivalve-like blue oyster mushroom belongs to the genus, pleurotus. These mushrooms are found growing in clusters on dead and decaying hardwood during Spring & Autumn. 

Although the blue oyster mushroom is an excellent candidate for beginners, it should be noted that it requires high levels of humidity and fresh air exchange to successfully trigger the formation of primordia.

This thick and meaty fungi will develop from deep, midnight blue pins into large, pale blue grey caps. Increased exposure to indirect sunlight may result in more vibrantly coloured caps.

Blue Oyster Mushrooms

What Do Blue Oyster Mushrooms Taste Like?

Blue oyster mushrooms are gifted with thick and meaty stems and cap. Perfect for making into mushroom steaks on the grill or for adding to a rich broth for that extra dimension. Richer and more distinctive in flavour than the standard button mushroom, these blue oyster mushrooms aren’t overpowering making them incredibly versatile and appealing to most palates. 

king oyster skewers

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What Substrate For Growing Blue Oyster Mushrooms?

The blue oyster mushroom is a saprotroph that acts as a primary decomposer. It’s often found on decaying on dying trees consuming the dead wood. They benefit the forest by decomposing dead and decaying matter and returning vital elements and minerals to the ecosystem.

In terms of commercial production the blue oyster mushroom is grown on a supplemented hardwood substrate which is often sterilised.

Alternatively, it is grown on a wide range of cellulose rich materials such as sugar cane mulchstraw, and corn cob which has been pasteurised. Buckets or poly-tubing can be used to grow in.

bulk substrate

Blue Oyster Mycelium Appearance

Blue oyster mushroom mycelium is similar in appearance and structure to white oyster mushroom mycelium. The strands of hyphal threads will grow vigorously creating  a thick, dense mat of mycelium if left undisturbed.

Like most species the mycelium will be noticeably less visible after agitation however the grain spawn will remain viable and ready for use.

Mycelium Growing On Sugar Cane Mulch

Blue Oyster Timeline

  • Agar/Liquid Culture to Grain – 3 weeks
  • Grain to Grain/Hardwood Substrate – 3 weeks
  • Fruiting Chamber to 1st Flush – 1 week
  • 1st Flush to 2nd Flush – 2/3 weeks (maintain high humidity)
mycelium growing on grain spawn

Blue Oyster Spawn Run & Fruiting Conditions

  • Spawn Run – 10 – 25 degrees Celsius
  • Fruiting Conditions – 7 – 20 degrees Celsius
  • Humidity above 80% 
blue oyster mushroom

Blue Oyster Spawn Run & Fruiting Conditions

  • Spawn Run – 10 – 25 degrees Celsius
  • Fruiting Conditions – 7 – 20 degrees Celsius
  • Humidity above 80% 

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Save time & money with pre-sterilised media for mushroom growing.