grass pollen.
Poaceae · Grass
The pollen of late spring and early summer, from lawns, fields and roadsides.
Usual season in the US
April to August
Typical months; the stronger marks are the usual peak. Seasons shift with region, weather and year.
Where it grows
Grasses grow everywhere. In the North the season peaks in May and June; in the South, warm-season grasses can keep going for much of the year.
Good to know
The forecast treats grasses as one pollen type, since their grains look alike. Mowing day and warm, breezy afternoons are when many people notice them.
In Sneezecast
Grasses 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:
Grasses 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
Ash
Pine