A picture of a King Oyster Mushroom

King Oyster Mushroom

Pleurotus eryngii

Also known as

King Trumpet Mushroom, French Horn Mushroom, Boletus of The Steppes, King Brown Mushroom, AliʻI Oyster, Trumpet Royale

Seta de cardo (Pleurotus eryngii), 2012-10-03, DD 01 by Diego Delso (CC BY-SA 3.0)

Full Shade
Advanced care
Moderate watering


RHS hardiness


Minimum temperature

Expected size








More images of King Oyster Mushroom

Some Pleurotus eryngii mushrooms
A close up of a bird

King Oyster Mushroom Overview

Pleurotus eryngii is the largest of the Oyster Mushrooms, commonly known by the name King Oyster Mushroom. It has the longest shelf-life and it is the third most popular mushroom in the world in terms of production. Although most assume its called the 'king' due to its remarkably large fruiting body, it is actually due to its superior flavour and texture. It has a more tender stem and smaller cap when compared to other oyster mushrooms.

Common problems with King Oyster Mushroom

No known pests and diseases.

    King Oyster Mushroom Companion Plants

    A photo of Barley


    Hordeum vulgare

    A photo of Oats


    Avena sativa

    How to harvest King Oyster Mushroom

    Pick mushrooms when ripe, much easier to harvest when big. Stored in the refrigerator or can be dried.

    How to propagate King Oyster Mushroom


    Spores are grown on straw, which is by far the easiest method for growing oyster mushrooms using mycelium from a growing kit. The mycelium of the king oyster mushroom does not produce many fruits.

    Special features of King Oyster Mushroom

    Attractive fruits

    The fruiting body is a large grey-brown edible mushroom.

    Other uses of King Oyster Mushroom


    Known to lower cholesterol and may contain chemicals that can support the immune system.


    Almost flavourless when eaten raw, but has a delicate taste and texture similar to abalone when cooked. It can be used in soups, stews and creamy sauces.