Blue Oyster H35 - Pleurotus ostreatus

Blue Oyster H35 (Pleurotus ostreatus) liquid culture syringe, suitable for inoculating grain, straw, hardwood-based substrates, agar, and other media. A reliable choice for growers seeking a fast-colonising and high-yielding oyster mushroom strain.

What You Will Receive
Sterile Blue Oyster H35 live liquid culture syringe
Sterile needle for precise inoculation
Ideal Growing Conditions – Blue Oyster H35
Substrate: Straw, hardwood sawdust, wood chips, supplemented substrates
Colonisation Temperature: 20°C – 24°C
Fruiting Temperature: 12°C – 18°C
Humidity: 85–95%
CO₂ concentration: Low (requires good fresh air exchange for proper cap development)

Blue Oyster H35 is a vigorous strain known for rapid colonisation and strong fruiting performance, especially in cooler conditions.

About Blue Oyster H35
Blue Oyster H35 (Pleurotus ostreatus) is a popular commercial strain valued for its dense clusters, consistent yields, and attractive blue-grey coloration during early growth. It is suitable for both beginners and experienced growers.

All liquid cultures are:
freshly prepared from tested master cultures
handled under sterile conditions
checked to ensure only clean, viable mycelium is present

We guarantee clean culture; if any issues arise, we will replace it.

What Is Liquid Culture
Liquid Culture (LC) is live mushroom mycelium suspended in a nutrient-rich liquid medium. It allows for faster colonisation and more consistent results compared to spores.

Storage
Room temperature: up to 1 month
Refrigerated: up to 12 months or longer

For best performance, it is recommended to use the culture soon after receiving.

Suitable For
mushroom cultivation
agar work and culture expansion
grain spawn preparation
indoor and outdoor growing setups