Last summer, I started noticing ridges on the tree trunk and branches ... One thing I do notice, though, from the photo it looks like grass is growing right up to the trunk of the young tree.

Seasonal allergens include pollen from trees, grass, and ragweed. The allergy season will last throughout spring and summer. The Gulf Coast, central Plains, northern Rockies, and Pacific Northwest ...

According to the Proceedings of the National Academy of Sciences of the United States of America, pollen amounts between 1990 and 2018 increased by up to 21%.