Allergen Calendar

The following allergens are currently in season.

Grass allergen icon

Grass

March - Mid-October
Grass pollen season in Texas begins in early March and doesn’t end until grasses stop releasing pollen in mid-October. As grass releases pollen into the air, the wind can carry it for miles on dry, sunny days. Pollen counts are usually lower on damp or cool days. Grass pollen is microscopic. Though you may not see it in the air, if you’re allergic to grass pollen, you may experience a reaction even to small amounts of it.
Pecan allergy icon

Pecan

Mid-March - June
Pecans: the official state tree of Texas. You’ll find pecan trees in the woods and orchards all over Texas. Though pecans are delicious in pies and other deserts, the pollen produced by pecan trees is second only to ragweed as a source of severe allergies. Peak time for pecan pollen release occurs from mid-March to late May, when it is spread all over the state by springtime winds.

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