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Platanus occidentalis

Sycamore, Buttonwood, American Planetree, Buttonball-tree

Pronunciation
PLAT-a-nuz ok-si-den-TAH-lis
Family
Genus
Nativity

Found throughout the Eastern US; Main to Florida west to Minnesota

Growth Habit

Platanus occidentalis is native to the eastern United States. It is a tree often with a large, massive trunk and a wide spreading, open crown of massive, crooked branches.

Hardiness
4
Culture

Grows best in well-drained, moist soils, usually found growing in bottomlands or along riverbanks. Prefers full sun.

Facultative Status
Facultative Wetland
Landscape Use

Best in its native habitat, but popular as a street tree. It is generally too large for this purpose and results in a great deal of unnecessary maintenence. This is an excellent specimen, greatly admired for how large and spreading it is; also the exfoliating bark is a prized characteristic. Used in residential areas and grows well in wet soils. However, this can be a nuisance because of the constant tree litter.

Foliage

Flat medium to dark green in summer. Alternate, simple, truncate or cordate, serrated or toothed along the ridge, often resembles a Maple tree leaf.

Buds

Buds are acute and pointed, the leaf scars encircle the bud.

Bark

Exfoliating; older trunks are white with mottled brown and black flakes falling off.

Flower

Similar to P. ×acerifolia.

Fruit

Hanging balls that are somewhat spiky, but not as spiky as American Sweetgum.

Propagation

No pregermination treament is necessary, although 60 days at 41 degrees Fahrenheit has proven beneficial.

Pests
Anthracnose, leaf spots, and Sycamore tussock moth.
Cultivars

'Howard' - New growth is a bright yellow that fades with the heat of summer.

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