Did you know that some trees are more allergic than others? I didn’t realize this until I read the New York Times opinion article by Thomas Leo Ogren. Male trees make more pollen than female trees, the male trees are chosen as city street trees because they are “cleaner” they produce no fruit or seed pods to litter the streets. There is no thought to the pollen that affects so many allergy sufferers in the city. Are you surprised that trees have sexes? Read the full blog about ways to curb pollen on your street.