Seasonal Allergy Report

for HOUSTON, TX
▼ - indicates current week     ● - indicates peak of the allergy season

National
Allergy Map

Check out where grass allergy levels are high or use our interactive allergy map to research allergy season in another city.

What Pollens are in the Air?

  • SPRING
  • SUMMER
  • FALL
  • WINTER

The plants listed below have been documented to grow in your state, and to flower during the season indicated nationally. Flowering time pertains to the particular season of the year that a species is most likely to occur within your area. Although the flowering period for any particular species may be fairly extensive, the pollination period itself (which may cause allergic symptoms to those sensitive) is generally much more abbreviated.

  • ALLERGENICITY LEGEND:

  • mild

  • moderate

  • significant

  • allergy test available

Allergens & Plants Search

Enter a full or partial species name to find more information on one of over 1,200 potentially allergenic plants.
For example, you can find chenopods searching on "cheno"