LA pollen report
Baton Rouge Pollen Report
Baton Rouge's subtropical climate on the Mississippi barely pauses for winter — and neither do its plants. Live oak and pine drive the late-winter and spring seasons, grasses pollinate for most of the year, ragweed carries the fall, and the river's humidity keeps mold spores active in essentially every month.
Collection coming soon to Baton Rouge
PollyMap is actively recruiting a verified local partner in Baton Rouge. Be the first to know — or apply to be the partner.
While we find a local clinic
Test the air at your own home in Baton Rouge
No allergy clinic is reporting from Baton Rouge yet. Until one does, you can order your own PollyKit — a simple air sampler you hang outdoors or indoors. Send it back and the PollyKit Lab shows you exactly what's floating in your air.
- Pollen from local trees, grasses and weeds
- Airborne mold spores
- Dust mites and other indoor allergens
Hang it outdoors
See which pollen and mold are in your yard this season.
Or hang it indoors
Check bedrooms and living spaces for mold, dust mites and more.
What drives allergies in Baton Rouge
Trees: live oak and pine (January – April)
Live oak (Quercus virginiana) — the city's signature tree — is the biggest spring allergen, with pine, pecan, and hackberry contributing from January onward.
Grasses: Bermuda and Bahia (March – November)
Warm-season grasses pollinate for most of the year in the subtropical climate.
Weeds: ragweed (August – November)
Ragweed (Ambrosia) fills the fall, overlapping with grass season and post-storm mold.
Mold: the year-round constant
Mississippi River humidity and heavy rainfall keep Alternaria and Cladosporium active in every month, with spikes after tropical systems.
Pollen patterns in Baton Rouge
In Baton Rouge, tree pollen — including Oak, Pine, Cedar — typically dominates from late winter through spring. Bermuda grass is the most common warm-season pollinator, and Ragweed drives the largest fall pollen load.
Top trees
- Oak
- Pine
- Cedar
- Pecan
- Sweetgum
Top grasses
- Bermuda
- Bahia
- Rye
Top weeds
- Ragweed
- Pigweed
- Plantain
Top molds
- Cladosporium
- Alternaria
- Aspergillus
- Stachybotrys
Baton Rouge 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 Baton Rouge
Explore pollen activity in nearby cities reported by the PollyMap network.
Frequently asked questions
What is the pollen count in Baton Rouge today?
PollyMap publishes real, microscope-verified pollen counts for Baton Rouge — measured from physical air samples. The latest report on this page shows current tree, grass, weed, and mold levels.
Is the pollen count high in Baton Rouge right now?
Something is almost always active in Baton Rouge: oak in late winter, grass most of the year, ragweed in fall, mold year-round. The measured reports on this page show today's actual levels.
When is allergy season in Baton Rouge?
Effectively year-round: trees January–April, grasses March–November, ragweed August–November, and mold in every humid month.
Why do allergies flare after storms in Baton Rouge?
Flooding and rain feed mold growth indoors and out — post-storm weeks often bring some of the highest mold spore counts of the year.
Is pollen still bad in Baton Rouge in the fall?
Yes. Ragweed peaks through October in Baton Rouge, and humidity keeps mold spores elevated well into the cooler months. Tree pollen season starts early here — often by January.
Are you an allergy clinic in Baton Rouge? Claim your territory on PollyMap.
PollyMap is a local authority-building tool for allergy clinics, ENT practices, and any clinic that offers allergy care. By becoming the Official PollyMap Partner for your part of Baton Rouge, your clinic gets credited on real pollen reports, receives ready-to-share weekly content, and becomes the go-to local expert patients trust.
We assign each partner a designated territory within the Baton Rouge metro — like a franchise territory. Baton Rouge has room for multiple partners, but once your area is assigned, it's locked to your clinic.
No clinic has claimed a territory in Baton Rouge yet. The best areas go to the first clinics that sign up — once one does, that part of town is off the table for everyone else.
Baton Rouge, Prairieville, Denham Springs, and Zachary each make PollyMap territories. The first allergy clinic in each area becomes its credited pollen expert.
- Your clinic credited on every Baton Rouge pollen report
- Weekly real-sample reports and ready-to-share content under your brand
- Locked territory — competing clinics can't claim your area
- Become the go-to allergy expert in your part of Baton Rouge
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