King Oyster Mushroom Strain (Pleurotus eryngii) - Best Quality Fresh Mushroom Mycelium Spawn

Premium king oyster mushroom spawn for reliable cultivation

Lab produced, Belgian made, top quality, fresh, mycelium strains on sterilized rye grain berries in special sealed mushroom bags.

Once the bag is opened, the spawn must be used and applied to the substrate immediately.

You will receive ready colonized rye grain spawn for inoculation on various fruiting substrates, of your choice.

Your spawn is prepared fresh after ordering to maximize on quality. For this reason it may take between 10 to 14 days to produce.

Ideally the product should be used immediately after delivery, but, keep it stored in the fridge at 4° Celsius for a maximum of two months and it will still be viable - Respect the expiry date on the package.

EDIBILITY

King Oyster mushrooms (Pleurotus eryngii) are highly edible, delicious, and versatile, known for their meaty texture, rich umami flavor, and suitability as a plant-based meat substitute in many dishes like stir-fries, skewers, or pan-seared as "vegan scallops".

The entire mushroom, from cap to thick stem, can be cooked and enjoyed, offering a hearty bite and nutritional benefits. 

HOW MUCH SPAWN TO BUY

The weight of your mushroom spawn ordered determines its intended use, so:

300g - Used to inoculate a sterilized/pasteurized block of 1.5 Kg

500g - For larger sterilized/pasteurized substrate inoculations of up to 2.5 Kg.

BEST GROWING CONDITIONS FOR KING OYSTER

Substrate: Straw, Hardwood sawdust

Colonization Temperature:  21-24C, 70-75F

Fruiting Temperatures:  15-21C, 60-70F

GROWING 

For maximum results it is best that this mushroom is grown indoor within a hydroponics grow room/tent, but a clean area or dark corner where there is a decent amount of humidity, air exchange and constant temperatures could also be used.

A humidifier would help to monitor humidity. Do not put in direct sunlight and watch out for gnats.

High-Quality Mycelium for Strong Growth

Our king oyster mushroom spawn is prepared from a carefully selected Pleurotus eryngii strain known for vigorous colonization and dependable fruiting performance. This fresh mycelium spawn is designed to help growers achieve consistent results in a wide range of cultivation settings. Whether you are starting a small indoor project or managing a larger production schedule, the clean and active spawn supports healthy mushroom development from the beginning. Its strong growth characteristics make it a practical choice for growers who value quality, stability, and predictable harvests.

Ideal for Commercial and Home Mushroom Production

This king oyster mushroom spawn is suitable for both commercial growers and hobbyists who want to produce premium edible mushrooms with excellent texture and appearance. King oyster mushrooms are widely appreciated for their thick stems, mild flavor, and firm bite, making them a popular crop in food markets and restaurants. With reliable mycelium activity, this spawn helps reduce delays in substrate colonization and supports even growth across your grow blocks or bags. It is an excellent option for growers seeking a professional-grade product that performs well in controlled environments.

Easy to Use with Standard Cultivation Methods

Our Pleurotus eryngii spawn is compatible with common mushroom cultivation substrates and standard growing techniques. Growers can use it with pasteurized materials under proper humidity, temperature, and fresh air conditions to encourage healthy colonization and fruiting. The spawn is formulated to maintain freshness and viability, giving you a strong starting point for the growing cycle. For best results, follow good sanitation practices and manage environmental conditions carefully throughout the production process. This makes the spawn a dependable choice for efficient and successful mushroom farming.

Fresh, Clean, and Produced for Consistent Results

Quality matters in mushroom cultivation, and this king oyster mushroom spawn is produced with attention to cleanliness and performance. Fresh spawn helps support faster establishment in the substrate, which can improve overall crop uniformity and reduce the risk of contamination when handled correctly. Its dependable mycelium structure is ideal for growers who want a product that supports steady development from inoculation to harvest. If you are looking for a trusted king oyster mushroom spawn for better yields, market-ready mushrooms, and a smoother cultivation process, this product offers a strong and practical solution.