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Blue Oyster Mushrooms

Strain Profile

The Blue Oyster mushroom is a favourite of mushrooms growers.  An aggressive coloniser, it fruits prolifically on a wide range of substrates including: hardwood logs, sawdust, and straw.  It is hardy and forgiving, making it an ideal species for beginners.

A native to temperate climates, this strain fruits quite happily from 7˚c upwards.  Fruiting at lower temperatures is possible, and will result in slower growth but an even meatier texture and darker colouring.

Preferred agar culture media:  PDA/PDYA

Preferred substrate:  Hardwood, Sawdust, Pasteurised Straw

Also Known As:  Pleurotus Ostreatus var. Columbinus (There is some debate on whether Blue Oysters are a distinct species or a var. of P. ostreatus.)

Growing Parameters

Spawn Run

Temperature: 18-24°c
Relative Humidity: 95-100%
Duration: 7-14 days
CO2: >5000pm
Fresh Air Exchanges: 0-1 per hour
Light Requirements: n/a

Primordia Formation

Temperature: 10-18°c
Relative Humidity: 95-100%
Duration: 3-7 days
CO2: 500-1000 ppm
Fresh Air Exchanges: 4-8 per hour
Light Requirements: 1000-2000 lux


Temperature: 7-18°c
Relative Humidity: 85-95%
Duration: 5-10 days
C02: <1000 ppm
Fresh Air Exchanges: 4-8 per hour
Light Requirements: 1000-2000 lux

Pre-Poured Agar Plates

MEA, MYA, PDA, PDYA, Activated Carbon
In a range of colours!