olive pollen.
Olea europaea · Tree
A spring tree pollen where olives are planted, in California and Arizona.
Usual season in the US
April to June
Typical months; the stronger marks are the usual peak. Seasons shift with region, weather and year.
Where it grows
Olive trees grow in orchards and as landscape trees in California, Arizona and other warm, dry places.
Good to know
Some Southwestern cities restrict planting new fruiting olive trees because of their pollen.
In Sneezecast
Google’s pollen forecast doesn’t list olive for the United States today, and Sneezecast forecasts only the US for now. The app still has its drawing, so every plant the forecast can name has a picture.