The Lone Star Sneeze: Why Texas Allergies Are A Year Round Problem

The saying "Everything’s bigger in Texas" unfortunately applies to our allergy seasons, too. Spring is here, and that means an onslaught of pollen, but in Texas, we get it all year. The different species of trees, grasses, and weeds take turns releasing massive amounts of pollen from January through December.

The "Big Three" Pollen Heavyweights

Texas allergy issues can be traced back to three major culprits in most cases. According to Texas A&M Forest Service, Mountain Cedar, Oak Trees and Ragweed tend to do the most damage.

Mountain Cedar (Ashe Juniper)

In Central Texas, winter does not bring a break from allergies; it brings "Cedar Fever." From December to February, the Ashe Juniper (often called Mountain Cedar) releases an astronomical amount of pollen. On windy days, the pollen can be seen blowing off the trees like clouds of smoke. This pollen is so concentrated that it can cause flu-like symptoms, including fatigue and low-grade fevers, even in people who don't typically have seasonal allergies.

Oak Trees

Once the cedar season tapers off in March, Oak trees take center stage. Oak is responsible for the signature yellow "dust" that coats cars and sidewalks across Texas every spring. Oak trees produce long, worm-like tassels called catkins, which release heavy, sticky pollen. Because oak trees are used extensively in Texas for landscaping, they are often cited as the #1 spring allergen in cities like Austin, Houston, and Dallas.

Ragweed

As summer fades into fall (August through November), Ragweed becomes the dominant offender. A single ragweed plant can produce up to one billion grains of pollen in a single season. Because these grains are lightweight, they can travel hundreds of miles on the wind, affecting Texans even cities, far from open fields.

Other Major Pollen Producers

While the "Big Three" get the most attention, several other species contribute significantly to the state's pollen count:

Pecan & Hickory: As the state tree of Texas, Pecan trees are everywhere. They release large amounts of pollen in April and May.

Cottonwood: Known for the "snow" (fluffy seeds) they release in late spring, the actual pollen comes earlier and is notorious for clogging HVAC filters.

Grasses: Bermuda and Johnson grasses thrive in the Texas heat and produce pollen from late spring through the entire summer.

Elm & Ash: These trees typically pollinate in late winter and early spring, often overlapping with the end of cedar season.

Low-Pollen Alternatives

If you are looking to landscape your yard without killing your allergies, experts recommend "insect-pollinated" plants rather than "wind-pollinated" ones. Since insects carry pollen directly from flower to flower, it rarely becomes airborne.

Low-Pollen Trees: Dogwood, Magnolia, Redbud, and most fruit trees (Peach, Pear, Cherry).

Low-Pollen Flowers: Tulips, Irises, Roses, Zinnias, and Geraniums.