Platanus Species, California Plane Tree, California Sycamore, Western Sycamore

Platanusracemosa

Genus
Platanus (PLAT-an-us)
Species
racemosa (ray-see-MO-suh)
Synonym
Platanus californica
Sun Exposure
Sun to Partial Shade
Foliage
Deciduous
Height
over 40 ft. (12 m)
Spacing
over 40 ft. (12 m)
Hardiness
USDA Zone 7a: to -17.7 °C (0 °F)
USDA Zone 7b: to -14.9 °C (5 °F)
USDA Zone 8a: to -12.2 °C (10 °F)
USDA Zone 8b: to -9.4 °C (15 °F)
USDA Zone 9a: to -6.6 °C (20 °F)
USDA Zone 9b: to -3.8 °C (25 °F)
USDA Zone 10a: to -1.1 °C (30 °F)
USDA Zone 10b: to 1.7 °C (35 °F)
Danger
Plant has spines or sharp edges; use extreme caution when handling
Pollen may cause allergic reaction
Bloom Color
Gold (yellow-orange)
Pale Yellow
Bright Yellow
Green
Brown/Bronze
Bloom Time
Late Winter/Early Spring
Other Details
Category
Trees
Water Requirements
Drought-tolerant; suitable for xeriscaping
Foliage Color
Where to Grow
Grow outdoors year-round in hardiness zone
Bloom Characteristics
This plant is attractive to bees, butterflies and/or birds
Bloom Size
Other details
Soil pH requirements
6.1 to 6.5 (mildly acidic)
6.6 to 7.5 (neutral)
7.6 to 7.8 (mildly alkaline)
Patent Information
Propagation Methods
From hardwood cuttings
Seed Collecting
Collect seedhead/pod when flowers fade; allow to dry
Allow pods to dry on plant; break open to collect seeds
Allow seedheads to dry on plants; remove and collect seeds
Regional

This plant is said to grow outdoors in the following regions:

Agoura Hills, California

Anaheim, California(2 reports)

Arroyo Grande, California

Calabasas, California

Chico, California(2 reports)

Citrus Heights, California

Fontana, California

Laguna Beach, California

Malibu, California

NORTH FORK, California

Oxnard, California

Paradise, California

Redding, California

Redlands, California

Sacramento, California

San Marcos, California

Temecula, California

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Gardener's Notes:

4
positives
1
neutral
0
negative
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C
Redding, CA | September 2013 | positive

The majestic California sycamore is an iconic tree of our state. It is quick and easy to grow, lives a very long time, has unique and un...Read More

O
O
Paradise, CA (Zone 9a) | August 2011 | positive

P racemosa should be planted in CA rather than the P. acerifolia commonly sold at nurseries and found in mall and office complexes though...Read More

D
Fontana, CA | June 2009 | positive

This tree's form makes it a picturesque sight whether it's near a stream or in someone's yard. The tree often has multiple trunks that le...Read More

C
Arroyo Grande, CA | March 2005 | positive

Beautiful CA native that grows mostly on the edges of creek banks and seasonal wet places. It will grow in other places with supplementa...Read More

G
Silver Spring, MD | September 2003 | neutral

People in the Southwest should use this tree instead of the London Plane. A huge tree that can grow very quickly and exceed 100'.

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