Our Premium King Oyster Mushroom Grain Spawn is perfect for growing sumptuous, meaty, and intensely flavourful King Oyster Mushrooms (Pleurotus eryngii). Our strain is selectively bred to yield bountiful flushes of delectable mushrooms that offer a sensorial delight, rich in earthy aroma and savoury undertones.

Though King Oyster Mushrooms are often considered more advanced to cultivate than other oyster varieties, they excel in cooler climates and benefit from attentive humidity management, especially in early growth stages. These specific requirements make them perfect for cultivators seeking hands-on growing experience. Meeting these conditions will reward you with a unique taste and aroma that other mushroom types simply can’t compete with.

Features

Cultivation Information

Species – Pleurotus eryngii

Inoculation Rate – Mix with ± 1% spawn

Recommended Substrate – 75% hardwood, mixed fine + coarse; 10% cereals; 5% oil seeds; 10% bran; Humidity: 65-70%

Incubation – Room temperature: 23-25 °C; Substrate temperature: 25-28 °C; Duration: 10-15 days

Primordia Induction – (Night time)* Temperature: lower to 18 °C;

Fruiting Conditions – Room temperature: 12-15 °C; Relative Humidity: 95-97%; CO2-concentration: < 1200 ppm; Light: 800-1500 lux

Flushes – Number: 2; Interval: 1-2 weeks; Between flushes: relative humidity increase up to 90%

Total Production Cycle – Ca. 2 months

Average Yield – 150 to 180 g saleable mushrooms per kg fresh substrate

Delivery

We are able to ship to Northern Ireland, the Scottish Islands, the Scottish Highlands, the Isle of Wight, and the Channel Islands. However, these shipments are arranged on a case-by-case basis to ensure the best possible service.

If you are located in one of these areas, please contact us directly at hello@urban-farm-it.com to place your order.

Note: Larger sizes have a lead time of 2-10 Days

1. Small Orders (E.g. 100ml Spawn, Plugs): Sent via Royal Mail large letters.
2. Medium-Sized Orders (under 2kg): Royal Mail 24-48 hour tracked parcel.
3. Large Orders (2kg+): via DPD Express.