Mushroom calendar

When porcini mushrooms are born: month by month

When they are found

When they are born the porcini mushrooms.

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

Boletus edulis sl

The shape of the season in Scandinavia, which is the region with the most observations (16,499).

January: 0.0% of observationsGFebruary: 0.0% of observationsFMarch: 0.0% of observationsMApril: 0.0% of observationsAMay: 0.0% of observationsMJune: 0.6% of observationsGJuly: 7.7% of observationsLAugust: 32% of observationsASeptember: 41% of observations41%SOctober: 18% of observationsONovember: 1.7% of observationsNDecember: 0.1% 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 16,499
Central Europe From August to October September 10,425
United States and Canada From August to December October 5.099
United Kingdom and Ireland From August to October September 4,093
France From August to November October 2.013
Spain From September to November October 1,225
Italy From July to October September 727
Australia and New Zealand From January to May April 699
Northern Italy From July to September August 595

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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