The most significant allergenic tree in Japan, affecting millions. Known locally as sugi. Produces enormous quantities of wind-dispersed pollen in spring.

Season February to April
Peak March

In a typical year, Japanese Cedar Pollen season runs February to April, peaking around March.

No tracked city is currently reporting measurable Japanese Cedar Pollen, which is typical when it is out of season.

Japanese Cedar Pollen season by country

Typical windows from our country pollen calendars; the weather shifts them earlier or later each year.

CountrySeasonPeak
JapanJan–AprFeb–Mar