IN pollen report
Indianapolis Pollen Report
PollyMap is actively seeking a qualified local collection partner in Indianapolis. This guide uses regional climate and historical allergen data while we recruit a local host.
Collection coming soon to Indianapolis
PollyMap is actively recruiting a verified local partner in Indianapolis. Be the first to know — or apply to be the partner.
Pollen patterns in Indianapolis
In Indianapolis, tree pollen — including Maple, Oak, Birch — typically dominates from late winter through spring. Bluegrass grass is the most common warm-season pollinator, and Ragweed drives the largest fall pollen load.
Top trees
- Maple
- Oak
- Birch
- Ash
- Walnut
Top grasses
- Bluegrass
- Timothy
- Orchard
- Rye
Top weeds
- Ragweed
- Lamb's quarters
- Pigweed
- Plantain
Top molds
- Alternaria
- Cladosporium
- Aspergillus
- Penicillium
Indianapolis pollen calendar
Typical monthly intensity across the year.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| tree | ||||||||||||
| grass | ||||||||||||
| weed | ||||||||||||
| mold |
Historical reports
Cities near Indianapolis
Explore pollen activity in nearby cities reported by the PollyMap network.
Frequently asked questions
When is allergy season in Indianapolis?
In Indianapolis, allergy season starts with tree pollen in late winter and early spring, transitions to grass pollen in May and June, and ends with weed pollen — primarily ragweed and sagebrush — from August through October.
What pollen is highest in Indianapolis?
The most prevalent local pollens in Indianapolis include Maple, Oak, Birch in the spring season.
What months are worst for allergies in Indianapolis?
Most Indianapolis allergy sufferers report the worst symptoms during peak tree pollen in March-May and again during ragweed season in September.
Does Indianapolis have mold allergies?
Yes. Indianapolis's climate supports Alternaria and Cladosporium spore exposure, with counts typically peaking in the warm and humid months.
Why are allergies bad in Indianapolis?
Local geography, climate, and seasonal plant cycles all influence allergen load in Indianapolis. The combination of regional vegetation and weather creates predictable spring and fall pollen peaks.
Is there a local pollen collection site in Indianapolis?
Not yet. PollyMap is actively seeking a qualified local allergy clinic or environmental health partner in Indianapolis to host weekly pollen collection.
How can my clinic become a PollyMap partner in Indianapolis?
Clinics in Indianapolis can apply to become the official PollyMap collection partner. Approved partners receive PollyKits weekly, conduct 24-48 hour collections, and mail samples back for microscope analysis.
Bring real pollen data to Indianapolis.
Become the lead PollyMap collection partner in Indianapolis and join our national network.
Apply today