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Situation

17.3.2025

Due to the cool weather, flowering of alder and hazel do not progress. Pollen concentrations of alder and hazel are low in southwestern Finland and Uusimaa.

Hazel and alder flowering are expected to become stronger in the southwestern and southern parts of the country as the weather gets warmer. Alder flowering is expected to start in the warmest habitats in central parts of the country within two weeks.