St. George's Mushroom
Calocybe gambosaGuide to St. George's mushroom in Europe: where Calocybe gambosa grows, spring season and habitat in meadows and pastures. How to identify it by its unmistakable smell.
St. George's mushroom — Calocybe gambosa — is the spring meadow mushroom par excellence. It appears between March and June in pastures, clearings, along forest edges and in fallow fields, often in rings or rows that mark habitual growth sites returning year after year. The floury-honeyed smell is very strong and characteristic: you can detect it from a distance. It is a saprotrophic fungus, not mycorrhizal, decomposing organic matter in grassy soil. In favourable years it is very abundant, especially in different parts of Europe, different parts of Europe and the different parts of Europe valleys. The season is short: you need to be quick.
Informational content. No online text or image replaces identification by an expert mycologist: if in doubt, do not eat the mushroom.
iNaturalist observation · Photo: Annika Lindqvist · CC BY
Reading the species through its habitat
Aby zrozumieć ten gatunek, trzeba połączyć siedlisko, sezon i reakcję na lokalne warunki. Sama nazwa mówi niewiele: las i gleba wyjaśniają, gdzie może się pojawić.
St. George's mushroom — Calocybe gambosa — is the spring meadow mushroom par excellence. It appears between March and June in pastures, clearings, along forest edges and in fallow fields, often in rings or rows that mark habitual growth sites returning year after year. The floury-honeyed smell is very strong and characteristic: you can detect it from a distance. It is a saprotrophic fungus, not mycorrhizal, decomposing organic matter in grassy soil. In favourable years it is very abundant, especially in different parts of Europe, different parts of Europe and the different parts of Europe valleys. The season is short: you need to be quick.
Moisture and weather conditions
Recent rainfall is only one part of the picture. What matters is how water is distributed over time, how long the litter can retain it and whether the soil remains aerated. Shade, wind, aspect and canopy cover can quickly change how the same habitat responds.
Temperature should be read alongside the species’ season. Rather than relying on a fixed threshold, look at the sequence of mild days, cooler nights, available soil water and the absence of prolonged stress.
Soil, elevation and aspect
Drainage, texture, litter and water-holding capacity describe the ground more usefully than elevation alone. Compare the model with vegetation type, slope and aspect.
Elevation shifts the calendar by changing temperature, moisture and the length of the season, but rarely creates a hard boundary. Two slopes at the same height can still have very different conditions.
A calendar written by elevation and climate
Meadows, pastures, clearings, path edges, fallow land and forest margins. Does not enter dense forest. Prefers soils rich in organic matter, moderately moist, from 100 to 1200 metres. Often forms rings or rows (fairy rings) at sites that repeat year after year.
The fruiting period of st. george's mushroom shifts with elevation and weather. Each year brings a different sequence of growth, pauses and renewed activity depending on soil water and local temperatures.
The st. george's mushroom profile
Strongly floury-honeyed smell — immediate distinguishing character White or cream cap, convex then flattened, inrolled margin when young Dense white sinuate gills Stout, white, short stem Growth in meadows/pastures, never in dense forest; often in rings or rows
Where st. george's mushroom may fruit
Explore the combination of habitat, elevation, aspect, recent rainfall and soil conditions that the model associates with a more favourable context for st. george's mushroom.