Pleurotus eryngii, commonly known as the King Oyster Mushroom, is a highly esteemed fungus appreciated for its robust size, meaty texture, and savory flavor. This mushroom is popular in culinary circles and is used in a variety of dishes due to its versatility and nutritional benefits. Native to Mediterranean regions, it is now widely cultivated worldwide.

Our 1 lb. King Oyster Inoculated Grain Spawn is prepared using high-quality, sterilized grains and premium mycelium. This ready-to-use bag is perfect for inoculating bulk substrates or as a standalone medium for growing. Each bag is designed to ensure fast and robust mycelial growth, making it easy for novice and experienced cultivators to achieve great results.

Our 6 x 1 lb. Inoculated grain bags are convenient and cost-effective for larger cultivation projects. These bags are filled with sterilized grains and inoculated with high-quality mycelium, ensuring rapid and healthy colonization. This bulk pack is ideal for growers looking to produce at scale.

Our 12 x 1 lb. Inoculated grain bags provide an excellent value for large-scale cultivation. These bags are filled with sterilized grains and inoculated with high-quality mycelium, ensuring rapid and healthy colonization. This pack ensures you have a substantial supply to meet your growing needs.

Our 18 x 1 lb. Inoculated Grain Bags are designed for serious cultivators looking to maximize their production. These bags are filled with sterilized grains and inoculated with top-quality mycelium, ensuring vigorous and rapid colonization. This bulk pack offers the best value and ensures a continuous supply for larger grows.

Our Grain Spawn contains pure, carefully isolated samples of mycelium nurtured and expanded in our sterile laboratory. These grain spawn bags are ideal for inoculating a variety of substrates, ensuring rapid and even colonization. Each batch of grain spawn is guaranteed to be contaminant-free, ensuring a high success rate for your cultivation projects. We offer a free replacement if needed.

King Oyster Inoculated Grain Spawn

Name: King Oyster Inoculated Grain Spawn
Brand: Mission Myco

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From $15.30

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Classification:

Kingdom: Fungi

Phylum: Basidiomycota

Class: Agaricomycetes

Order: Agaricales

Family: Pleurotaceae

Genus: Pleurotus

Species: P. eryngii

Other Names:

King Oyster Mushroom

King Trumpet Mushroom

French Horn Mushroom

Eryngii Mushroom
Use potato dextrose agar (PDA) or malt extract agar (MEA) for initial culturing of the mycelium.

Incubate Petri dishes at 24-27°C (75-80°F) in a dark environment until fully colonized.
Grain spawn (oats, rye, millet, or sorghum) is recommended for inoculating the bulk substrate.

Sterilize the grains and inoculate with the colonized agar from the Petri dishes.

Incubate the grain spawn at 24-27°C (75-80°F) until fully colonized.
King Oyster Mushrooms can be grown on various substrates, including straw, sawdust, or a mixture of agricultural byproducts. A commonly used substrate is a mixture of hardwood sawdust and wheat bran.

Ensure the substrate is well-sterilized to prevent contamination and provide a nutrient-rich environment for the fungus.
The optimal temperature for mycelium growth: 20-24°C (68-75°F)

The optimal temperature for fruiting: 12-18°C (54-64°F)
Maintain high humidity levels of 85-95% during both mycelium growth and fruiting stages.

Regularly mist the substrate to maintain adequate moisture levels.
King Oyster Mushrooms require low to moderate light conditions for fruiting. Indirect sunlight or artificial light that simulates natural light can be used.

Mycelium growth occurs in the dark.
Good air circulation is essential to prevent the buildup of CO2 and to provide fresh air, which is critical during the fruiting stage.

Ensure proper ventilation to maintain fresh air exchange.
Colonization of the substrate typically takes 2-4 weeks, depending on environmental conditions.

Fruiting can be expected within 1-2 weeks after the substrate is fully colonized and conditions are adjusted for fruiting.

Total growing time from inoculation to harvest is approximately 6-8 weeks.
The ideal pH range of the substrate for King Oyster Mushrooms is typically between 6.0 and 7.0, with a slightly acidic to neutral environment being most conducive to growth.

Adjusting the pH of your substrate according to these guidelines can significantly impact the success of your King Oyster Mushroom cultivation.