
London plane
Platanus acerifolia
Very low today, mostly grass pollen.
Last updated July 9, 2026
Grass pollen is the main source of activity in Los Angeles today, though levels remain low enough that most people won't notice much of anything. Tree pollen is essentially quiet right now, so anyone sensitive to grasses may feel a mild effect outdoors, while others should have an easy day overall. Looking ahead, grass pollen is expected to hold steady at low levels through the next few days, with a slight dip as the week continues. Tree pollen should stay absent, which is typical for midsummer now that species like Grevillea, Brachychiton, Podocarpus, Eucalyptus, and Pyrus have finished their earlier seasonal release. With grass pollen easing gradually and no ragweed season yet in play, conditions should remain calm and manageable in the days ahead.
Every dot is a tree near Los Angeles, 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 Los Angeles. Each bar is that genus's share of the tree pollen.
92 pollen-relevant trees nearby drive today's tree-pollen reading.
Get to know the tree types growing around Los Angeles: what each looks like, how allergenic it is, and when it blooms.

London plane
Platanus acerifolia

Chinese evergreen elm
Ulmus parvifolia

Oak species
Quercus

American sweetgum
Liquidambar styraciflua

Glossy privet
Ligustrum lucidum

Siberian elm
Ulmus pumila

California sycamore
Platanus racemosa

Italian cypress
Cupressus sempervirens

Modesto ash
Fraxinus velutina

Japanese black pine
Pinus thunbergiana

Leaf plum purple
Prunus pissardii

Evergreen pear
Pyrus kawakamii

Arizona ash
Fraxinus velutina

Holly oak
Quercus ilex

Shamel ash
Fraxinus uhdei

Western catalpa
Catalpa speciosa