I know, you might be asking, “Quercus, really?” Indeed oaks. Oaks have spectacular flowers! These often-overlooked flowers and quite intricate and showy in their own right. The yellow male catkins appear in the spring and set forests aglow.

How long do oak trees drop catkins?

Oak Tree Pollen Facts

The oak tree pollen drop lasts about four days. It is this yellowish dust that is seen on car hoods and deck floors, and causes problems for people with seasonal allergies. Heavy rains and humid conditions may delay the release of pollen and affect the number of acorns produced on a single tree.

Do oak trees produce catkins?

The "tassels" that drop from oak trees are called catkins, and they are the spent male flowers whose purpose is to shed pollen that is carried by the wind to female flowers. If all goes well, the female flowers will then develop into the acorns that are the seeds of the oak tree.