Pollen in Pasadena, CA

About pollen in Pasadena

Pasadena is enjoying a quiet stretch when it comes to pollen today. Tree pollen, the only category being tracked right now, is essentially absent, so those with sensitivities should find little to react to outdoors. Looking ahead, conditions are expected to stay calm over the next few days, with tree pollen remaining at this same low point. This lines up with the time of year, since local trees like citrus, ash, prunus, cedrus, and malus typically stay dormant through late fall, with any real activity still months away as spring approaches.

What to do today

• Pollen is minimal today, so it's a great time to be outside.
• No special pollen precautions are needed right now.

Tree map

Every dot is a tree near Pasadena, colored by how allergenic it is. Click one for its details, and zoom in for a closer look.

Top tree-pollen sources

The local tree genera behind today's pollen near Pasadena. Each bar is that genus's share of the tree pollen.

Meet the trees near you

Get to know the tree types growing around Pasadena: what each looks like, how allergenic it is, and when it blooms.

London plane

Platanus acerifolia

Allergenicity 4/4Blooms spring

Bradford pear

Pyrus calleryana

Allergenicity 1/4Blooms spring

Chinese evergreen elm

Ulmus parvifolia

Allergenicity 3/4Blooms spring

Oak species

Quercus

Allergenicity 4/4Blooms spring

Shamel ash

Fraxinus uhdei

Allergenicity 4/4Blooms spring

Italian cypress

Cupressus sempervirens

Allergenicity 4/4Blooms winter,spring

Chinese elm

Ulmus parvifolia

Allergenicity 3/4Blooms spring

Glossy privet

Ligustrum lucidum

Allergenicity 2/4Blooms spring

American sweetgum

Liquidambar styraciflua

Allergenicity 2/4Blooms spring

White mulberry

Morus alba

Allergenicity 5/4Blooms spring

Maidenhair tree

Ginkgo biloba

Allergenicity 1/4Blooms spring

Siberian elm

Ulmus pumila

Allergenicity 3/4Blooms spring

Aleppo pine

Pinus halepensis

Allergenicity 1/4Blooms spring

Arizona ash

Fraxinus velutina

Allergenicity 4/4Blooms spring

Japanese black pine

Pinus thunbergiana

Allergenicity 1/4Blooms spring

Monterey pine

Pinus radiata

Allergenicity 1/4Blooms spring

Common questions

What is the pollen count in Pasadena, CA today?

Pasadena, CA has no notable tree, grass, or weed pollen today.

What plants are causing allergies in Pasadena, CA?

The main sources right now are Citrus, Ash, Prunus, Cedrus, and Malus.