
Honeylocust
Gleditsia triacanthos
Very low today, mostly grass pollen.
Last updated July 20, 2026
Pollen activity in Flatbush is minimal today. Tree pollen is absent, and grass pollen is only present at a very low level, so most people should notice little to no effect even if they tend to be sensitive. Overall, this is an easy day for anyone who deals with seasonal allergies. Looking ahead, conditions are expected to stay quiet, with grass pollen holding at a similarly low level and tree pollen remaining out of the picture. This fits the season, since local trees like oak, elm, and pear have already released their pollen earlier in the year, and honeylocust and Styphnolobium typically add little at this point. Grass pollen can linger into midsummer, but current levels suggest it won't be a significant concern in the near term.
Every dot is a tree near Flatbush, colored by how allergenic it is. Click one for its details, and zoom in for a closer look.
The local tree genera behind today's pollen near Flatbush. Each bar is that genus's share of the tree pollen.
730 pollen-relevant trees nearby drive today's tree-pollen reading.
Get to know the tree types growing around Flatbush: what each looks like, how allergenic it is, and when it blooms.

Honeylocust
Gleditsia triacanthos

London planetree
Platanus acerifolia

Callery pear
Pyrus calleryana

Sophora
Styphnolobium japonicum

Ginkgo
Ginkgo biloba

Pin oak
Quercus palustris

Green ash
Fraxinus pennsylvanica

Japanese zelkova
Zelkova serrata

American elm
Ulmus americana

Eastern redcedar
Juniperus virginiana

Kentucky coffeetree
Gymnocladus dioicus

Littleleaf linden
Tilia cordata

Chinese elm
Ulmus parvifolia

Leaf plum purple
Prunus cerasifera

American linden
Tilia americana

Cherry
Prunus