Mushroom calendar

When do mumps appear in the UK and Ireland?

Updated on October 28, 20261 min read
When they are found

When they are born the mumps in the United Kingdom and Ireland.

Mumps in the UK and Ireland are mostly found from July to February, peaking in October.

Pleurotus ostreatus

January: 13% of observationsGFebruary: 6.9% of observationsFMarch: 4.8% of observationsMApril: 2.7% of observationsAMay: 3.3% of observationsMJune: 4.4% of observationsGJuly: 5.2% of observationsLAugust: 5.8% of observationsASeptember: 10% of observationsSOctober: 18% of observations18%ONovember: 12% of observationsNDecember: 14% of observationsD
Month-by-month observation rate. October stands out, as it is the month with the most documented finds.

On 8,839 observations documented public services in the UK and Ireland from 2011 to 2025.

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, nel tuo bosco, quest’anno, lo dice la rain caduta lì: MushScout la segue giorno per giorno e ti dice quando è il momento.

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

Mumps in other regions

All regions compared →

Other mushrooms in the UK and Ireland

The full schedule in the UK and Ireland →

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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