
London plane
Platanus acerifolia
Moderate today, mostly weed pollen.
Last updated September 29, 2026
Weed pollen is the main story in Alhambra today, sitting at a moderate level that sensitive individuals will likely notice. Tree pollen is quiet, and grass remains at a very low level, so most of the day's allergy discomfort, if any, will trace back to weeds rather than trees or grasses. Looking ahead, weed pollen is expected to ease slightly over the next several days but stay in a range that could still bother those who react to it, while grass holds steady at its current low level and tree pollen remains absent. This pattern fits the season well: local trees such as plane, mulberry, crape myrtle, ficus, and Mexican fan palm have already finished their spring release and are not contributing right now, while weeds typically remain the dominant allergen through late summer and into fall.
Every dot is a tree near Alhambra, 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 Alhambra. Each bar is that genus's share of the tree pollen.
214 pollen-relevant trees nearby drive today's tree-pollen reading.
Get to know the tree types growing around Alhambra: what each looks like, how allergenic it is, and when it blooms.

London plane
Platanus acerifolia

Oak species
Quercus

Siberian elm
Ulmus pumila

Chinese evergreen elm
Ulmus parvifolia

Bradford pear
Pyrus calleryana

Shamel ash
Fraxinus uhdei

Arizona ash
Fraxinus velutina

Olive
Olea europaea

Italian cypress
Cupressus sempervirens

Chinese elm
Ulmus parvifolia

Almond
Prunus amygdalus

Evergreen pear
Pyrus kawakamii

Leaf plum purple
Prunus pissardii

Kingans fruitless mulberry
Morus alba

Aleppo pine
Pinus halepensis

Carolina laurel cherry
Prunus caroliniana