Mushroom calendar

When the bay boletus is born: month by month

When they are found

When was he born? the bay boletus.

The season varies from one part of the world to another: here are all the regions compared, each with its own months.

Imleria abbey

The shape of the season in Scandinavia, which is the region with the most observations (9,900).

January: 0.0% of observationsGFebruary: 0.0% of observationsFMarch: 0.0% of observationsMApril: 0.0% of observationsAMay: 0.0% of observationsMJune: 0.4% of observationsGJuly: 5.0% of observationsLAugust: 20% of observationsASeptember: 40% of observations40%SOctober: 29% of observationsONovember: 5.0% of observationsNDecember: 0.6% of observationsD
Month-by-month observation rate. September stands out, as the month with the most documented finds.

Region by region

RegionThey are foundMaximumObservations
Scandinavia From August to October September 9,900
Central Europe From August to October October 8,571
United Kingdom and Ireland From September to November October 3.338
France From August to November October 1.105
United States and Canada From July to October August 746
Spain From October to December November 346
Italy From May to October October 173
Northern Italy From May to October October 170

The grey lines have few public comments: the month indicated is indicative, and there is no dedicated page.

Because every year is different

  • The season opens with rain: after a heavy rain, with the soil still warm, it takes one or two weeks.
  • In mountain It begins earlier and ends earlier than on the plain, and the same is true for the northern slopes.
  • A'dry summer It pushes it forward, sometimes by weeks. A mild autumn lengthens it.

The calendar says the months. Which day, in your forest, this year, the rain that fell there tells you: MushScout follows it day by day and tells you when it's time.

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With Premium you can see the next 12 days and the day they could be born.

Data: GBIF.org — GBIF.org, observations with coordinates 2011-2025, counts by month (facet). The observations say when people have documented a find, not how many mushrooms there were.

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