ash pollen.
Fraxinus · Tree
A mid-spring tree pollen, common in cities and along streets.
Usual season in the US
March to May
Typical months; the stronger marks are the usual peak. Seasons shift with region, weather and year.
Where it grows
Ash trees grow throughout the eastern and central US and were planted widely as street trees.
Good to know
Ash flowers around the same weeks as oak and birch, so a high spring day often has all three in the air.
In Sneezecast
Ash is in the five-day forecast for your area whenever it’s in season. Star it if you know it gets you, and the morning verdict follows it:
Ash high — your top trigger. Take your usual allergy medicine before you head out.
Not sure it’s yours? Log how each evening felt in two taps. After ten logged days, Sneezecast compares your diary with the pollen and ranks what moves your symptoms. How it learns
Oak
Birch
Maple
Grasses
Elm
Alder
Cottonwood
Pine