Welcome!

You are purchasing Armillaria ostoyae grain dry mycelium.

This listing is for MYCELIUM ONLY — the vegetative growth stage of the fungus.

✔️ Not a fresh mushroom

✔️ Not a dried mushroom

✔️ Not a food or ready-to-eat product

The mycelium is intended for cultivation and biological growing purposes.

About Armillaria ostoyae Mycelium

Armillaria ostoyae is a saprotrophic to weakly parasitic fungus in the family Physalacriaceae. Its mycelium develops on living or dead wood, primarily coniferous trees such as pine and spruce, forming rhizomorphs that spread through soil and woody substrates, contributing to forest nutrient cycling and decomposition processes.

The mature mushroom (not included in this sale) is characterized by:

Honey-brown to yellow-brown caps, often with fine scales

Stout, fibrous stems with a ring

Growth in clusters on stumps, roots, and buried wood

Occurrence mainly in temperate and boreal coniferous forests

This product contains MYCELIUM ONLY, representing the initial developmental stage of the fungus.

Natural Growing Conditions

In nature, Armillaria ostoyae mycelium is found in:

Coniferous and mixed forests

Dead or living wood of pine, spruce, and other conifers

Well-drained soils with woody debris

Temperate and boreal climates with moderate moisture

Fruiting typically occurs from late summer to autumn, depending on local environmental conditions.

Cultivation Context (Mycelium Use)

This mycelium is suitable for outdoor cultivation on conifer wood substrates, reflecting its natural ecology.

Typical environmental features include:

Decaying logs, stumps, and buried roots of conifer trees

Soil containing woody material

Moderate, consistent moisture

Shaded to semi-shaded locations

Care & Environmental Considerations

Maintain moderate substrate moisture

Avoid chemical fungicides and treatments

Preserve natural wood and soil structure

Minimize disturbance after inoculation

Storage Instructions

Store unused mycelium in a sealed container

Keep in a cool, dry place

Refrigeration is acceptable

Protect from freezing and direct sunlight

Summary

✔️ Armillaria ostoyae grain dry mycelium

✔️ Saprotrophic to weakly parasitic wood-inhabiting fungus

✔️ Suitable for outdoor cultivation on conifer substrates

✔️ Product contains MYCELIUM ONLY