05/20/2025
Depending on where you live, there are generally three pollen seasons. The start and end dates of these seasons, as well as the specific plants, vary based on the climate.
• Trees generally pollinate in the spring. Birch, cedar, cottonwood and pine are big allergy triggers.
• Grass releases its pollen in the summer. Timothy and Johnson, and Rye grasses are examples of allergens in this category.
• Weeds cause hay fever in the fall. Ragweed is the biggest offender as it can grow in nearly every environment.