What is pollen?
Pollen is the tiny egg-shaped male cells of flowering plants, including trees, grasses, and weeds. Pollen is microscopic in size.
the most common cause of hay fever (seasonal allergic rhinitis).
Which plants produce pollen that cause allergic reactions?
Plants that have powdery granules of pollen that are easily blown by the wind, such as:
Trees. These include oak, western red cedar, elm, birch, ash, hickory,
poplar, sycamore, maple, cypress, walnut, catalpa, olive, and pecan.
Grasses. These include Timothy, Johnson, Bermuda, orchard, sweet vernal,
red top, and some blue grasses.
Weeds. These include ragweed, sagebrush, pigweed, tumbleweed, Russian
thistle, and cockle weed.
flowering plants, such as roses, have heavier, waxy pollens that are not as easily
wind-blown. These pollens are spread by bees or butterflies.
When is pollen season?
plant has a pollen season. It often starts in the spring. But it may begin as early as
January in the southern part of the U.S. The season often lasts until November.
Different parts of the country have different pollinating plants and different pollen
fever in pollen season be prevented?
lessen the effects of hay fever during pollen season, do the following:
Keep windows closed at night and use air conditioning. This cleans, cools, and
dries the air.
Limit outdoor activities early in the morning between 5 a.m. and 10 a.m., when
pollen is most common.
Keep car windows closed when traveling.
Take a vacation to an area where pollen is not as common, such as the ocean.
Take the medicines prescribed by your healthcare provider.
Don't spend much time outdoors when the pollen count is high. If you spend time
outdoors, wash your hair and change your clothes when you come back inside.
Don't rake leaves during pollen season.
If you are allergic to grass, wear a mask or have someone else mow the
Don't hang bedding or clothing outside to dry.
Wear sunglasses and a hat to keep pollen out of your eyes and
Talk with your healthcare provider about allergy shots. These can help build your
resistance to pollen.
Online Medical Reviewer:
Daphne Pierce-Smith RN MSN CCRC
Online Medical Reviewer:
Deborah Pedersen MD
Date Last Reviewed:
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