
Honeylocust
Gleditsia triacanthos
Very low today, mostly weed pollen.
Last updated September 30, 2026
Pollen levels in Flatbush are quiet today. Tree pollen is absent entirely, and weed pollen is registering at only a very low level, so most people should notice little to no effect from either source. Overall, this is a comfortable day for anyone who typically deals with seasonal allergy symptoms. Looking ahead, weed pollen is expected to tick up slightly over the next couple of days before settling back down, though it should remain in the low-to-moderate range rather than becoming a significant concern. This lines up with the typical late-September pattern, when ragweed and other weeds are the main allergen of note as the season winds down. Tree pollen, meanwhile, is not a factor right now — local trees like oak, elm, and honeylocust are well past their spring peak and won't become active again until next year.
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