This season occurs in the spring—typically sometime in February through late May .

Tree pollen allergies—especially to birch and related trees—can lead to allergy symptoms when eating certain raw fruits, vegetables, or nuts. This happens due to cross-reactivity between tree pollen and plant-based foods. If you’re sensitive during spring, avoiding or modifying your intake of the following foods might reduce symptoms.

Here’s a list of common foods to avoid or be cautious with during tree season:

• Raw apples
• Raw oranges
• Raw celery
• Raw carrots
• Cabbage
• Cinnamon
• Tree nuts