A UF/IFAS urban forest study found the most common residential trees in Gainesville include laurel and water oaks, pines, red maple, sweetgum and wax myrtle, a mix that drives a strong late-winter and spring pollen season.
Gainesville Pollen Calendar
| Month | Trees | Grasses | Weeds | Mold |
|---|---|---|---|---|
| Jan | Moderate (red cedar, red maple, early oak) | Low | Low | Low–moderate |
| Feb | High (oak, pine, red maple, cedar) | Low | Low | Low–moderate |
| Mar | Very high (oak, pine, sweetgum) | Low–moderate | Low | Moderate |
| Apr | Very high (oak, pine) | Moderate (Bahia starts) | Low | Moderate |
| May | Moderate (pine tapering) | High (Bahia, Bermuda) | Low–moderate | Moderate |
| Jun | Low | High (Bahia, Bermuda) | Low–moderate | High |
| Jul | Low | High | Low–moderate | High |
| Aug | Low | High | Moderate (ragweed begins) | High |
| Sep | Low | Moderate–high | High (ragweed, dog fennel) | High |
| Oct | Low | Moderate | Moderate–high (ragweed) | Moderate–high |
| Nov | Low | Low | Moderate (tapering after first cool snaps) | Moderate |
| Dec | Low–moderate (cedar) | Low | Low | Low–moderate |
Main Pollen Triggers
Trees
- Oak (laurel and water oak) – the most common residential trees in Gainesville’s urban forest study and highly allergenic (UF/IFAS FR268).
- Pine (loblolly, slash, spruce pine) – huge volumes of yellow pollen in late winter and spring, though rated less allergenic than oak.
- Red maple and sweetgum – early-season North Florida trees common in yards (UF/IFAS FR268).
- Eastern red cedar and wax myrtle – highly allergenic species noted by UF/IFAS.
Grasses
- Bahiagrass, Bermudagrass and Johnsongrass – grasses ramp up in late spring and summer; winters are cool enough that grass pollen usually drops off.
Weeds
- Ragweed – the most clinically significant weed, rising in late summer and fall.
- Dog fennel and pigweed – other highly allergenic weeds; goldenrod is often blamed but its sticky pollen doesn’t travel well on the wind (UF/IFAS).
Mold
Florida’s hot, humid wet season (roughly late spring through early fall, per NOAA climate summaries) favors outdoor mold, which triggers symptoms similar to pollen.
Local Tips
- Laurel and water oaks dominate local yards and rate higher on allergy scales than pines (UF/IFAS FR268).
- Stay inside during peak pollen hours, generally late morning to afternoon (UF/IFAS).
- Keep windows closed and run the A/C with a good filter during high-count days (UF Health).
- Shower and change clothes after time outdoors; dry laundry in the dryer, not outside (UF/IFAS).
- Rain washes pollen out of the air, so counts often drop after a storm; hot, dry, windy days push counts up (UF Health).
- Check daily counts from an AAAAI National Allergy Bureau station or local forecast.
When to See an Allergist
ACAAI suggests seeing an allergist when symptoms last for months, interfere with sleep, work or school, aren’t controlled by over-the-counter medicines, or come with asthma symptoms such as wheezing or shortness of breath. An allergist can test which Florida pollens you react to and discuss immunotherapy. Trouble breathing or swelling of the face or throat is an emergency – see seasonal allergy emergencies.
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What actually helps
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HEPA air purifier & filters
A portable HEPA purifier sized to the room can lower airborne particles such as pollen and dust; it only works if you replace filters on schedule. (EPA: Guide to Air Cleaners in the Home)
See the Levoit Core 300 on AmazonSaline nasal rinse kit
Rinsing with saline can clear pollen from the nose; use distilled, sterile or boiled-then-cooled water, never plain tap water. (FDA: Is rinsing your sinuses with neti pots safe?)
See the NeilMed Sinus Rinse kit on AmazonDust-mite pillow & mattress covers
Allergists recommend zippered, allergen-proof encasings for pillows, mattresses and box springs, plus hot-water washing of bedding. (ACAAI: Dust Allergy)
See Hospitology zippered pillow encasements on AmazonFrequently Asked Questions
When is allergy season in Gainesville?
Tree pollen starts earliest here, often building in January–February and peaking in March–April with oak and pine. Grasses lead in summer and ragweed in early fall.
Which Gainesville trees cause the most allergies?
Laurel and water oaks are the most common residential trees and are more allergenic than pines, according to UF/IFAS.
Where can I check today’s pollen count?
Use the AAAAI National Allergy Bureau station map for certified counts, or a local weather forecast. Counts change daily with wind and rain.
When should I see an allergist in Gainesville?
If symptoms last for months, disrupt sleep or work, don’t respond to over-the-counter medicines, or come with wheezing, a board-certified allergist can test which local pollens you react to and discuss treatment (ACAAI).
More Florida Guides
Related Guides
- Pollen allergies explained
- Spring allergies
- Fall allergies
- Winter allergies
- Antihistamines
- Nasal sprays
- Removing allergen triggers at home
Sources
- UF/IFAS Gardening Solutions: Pollen and Allergies
- UF/IFAS News (March 2026): Pollen season hits with full force
- UF/IFAS FR268: Urban Trees and Allergies in North Florida
- UF Health: Allergies, Asthma, and Pollen
- ACAAI: Hay Fever
- CDC: Pollen and Your Health
- AAAAI National Allergy Bureau pollen counts
- NOAA/NCICS State Climate Summary: Florida
This page is for general information only and is not medical advice. Talk with your doctor or a board-certified allergist about your symptoms and treatment.