Box Elder trees, also known as Acer negundo, a type of Maple tree native to the United States.

Box Elder is a type of Maple tree native to us in the United States. This type of tree is primary wind-pollinated which means it's allergenic pollen can be spread for hundreds of miles.

Box Elder pollen is most prevalent during March to May.

Box Elder trees, also known as Acer negundo, are a type of maple tree found primarily in the Midwest and Eastern parts of the United States. During the spring and early summer months, Box Elder trees produce large amounts of pollen, which can cause allergic reactions in many people.

The peak allergy season for Box Elder pollen typically occurs in late April and early May, although the exact timing can vary depending on the location and weather conditions. Box Elder pollen is a common cause of seasonal allergies, with symptoms that can include sneezing, runny nose, itchy eyes, and congestion.

For individuals with asthma or other respiratory conditions, exposure to Box Elder pollen can be particularly problematic, as it can exacerbate existing symptoms and make it difficult to breathe. As such, it's important for those who are sensitive to pollen to take steps to minimize exposure during peak allergy season.