How fast does it grow?

It is a very fast grower, often adding several feet per year.

Can I plant it near my house?

No, its massive size and aggressive root system make it unsuitable for small yards or near foundations.

Plant guide

American sycamore.

Platanus occidentalis

Pronounced PLAT-uh-nus ok-si-den-TAY-liss

Also known as American Plane, American Plane Tree, American Planetree, American Sycamore, American plane-tree, Bottonball, Buttonball, Buttontree

Platanus occidentalis — Photo by ashleyrsteel (CC BY) via gbif

The American sycamore is a massive, fast growing deciduous tree native to North America. It is well known for its distinctive peeling bark that reveals white, cream, and tan patches underneath. You will often find these giants growing near streams and rivers where they have plenty of room to spread their roots.

At a glance

Care level: Easy
Plant type: Deciduous tree
Light: Full sun
Indoor light: Direct sun
Water: Every 7 to 14 days
Mature size: 75 to 100 feet
Growth rate: Fast
Hardiness: USDA 4 to 9
Bloom time: Mid spring

Care

Plant this tree in a location with plenty of space for its expansive root system and canopy. Keep an eye out for leaf blight or anthracnose during wet springs. It is a very hardy tree that mostly takes care of itself once established.

Watering: Young trees need regular deep watering until they are well established in the landscape.
Feeding: Apply a balanced fertilizer in early spring if the tree shows signs of slow growth.
Pruning: Prune during the dormant winter season to remove dead or crossing branches.
Repotting: This tree is not suitable for container growth due to its massive size.
Soil: Moist, deep, rich soil
Soil pH: 5.0 to 8.0
Temperature: -30 to 35°C
Humidity: 40 to 80%
Drought tolerance: Moderate
Lifespan: Perennial, can live for 200 to 500 years.
Deer and rabbits: Moderate

Safety

People: The fine hairs on the leaves and fruit can cause irritation if inhaled or touched.
Children: The large, heavy fruit balls can be a tripping hazard or cause minor injury if they fall on small children.
Contact allergens: The fuzzy hairs on young leaves and fruit can cause skin irritation.
Airborne allergens: The pollen is a common allergen during the spring flowering season.
Edibility: The fruit is not considered edible for humans.

How to identify it

Large, maple like lobed leaves
Exfoliating bark with camouflage pattern
Round, fuzzy seed balls hanging down
Massive trunk with wide base

Height: 20 to 40m
Spread: 15 to 30m
Leaves: green, deciduous
Flowers: green, red, 1 to 2cm
Fruit: brown, Autumn to winter

Problems to watch for

Lace BugCommon
Sycamore AnthracnoseCommon
CankerUncommon
Leaf ScorchUncommon
Powdery MildewUncommon
Scale InsectsUncommon

By symptom

Plant problems by symptom

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Growing it

Propagation: seed, cuttings
When to plant: spring, autumn
Overwintering: No special protection is needed as it is fully hardy in its native range.
In containers: This tree is far too large for container growth.

Seed

Collect the fuzzy fruit balls in late winter.
Break them apart to release the seeds.
Sow seeds in moist soil and keep them consistently damp until germination.

Group this tree with other moisture loving species to create a stable riparian buffer.

Grows well with

River Birch · They share similar moisture requirements and thrive in riparian settings.
Swamp White Oak · This oak also tolerates the wet soil conditions often found near sycamores.

Similar species

London Plane Tree · It is a hybrid that is more resistant to anthracnose than the native species.

Science

Family: Platanaceae
Genus: Platanus
Order: Proteales
Class: Magnoliopsida
Native range: Eastern and central North America.
Conservation: This species is widespread and not currently of conservation concern.

It thrives in moist, deep soils along floodplains where it can tolerate periodic inundation.

Value to wildlife: seeds provide winter food for birds, nesting habitat for squirrels and birds
Pollinators: bees
Uses: shade tree, riparian restoration, timber

Through the year

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Flowering

Fruiting

Foliage

Ecological indicators

Salinity: 2/9
Soil reaction: 6/9
Light: 7/9
Temperature: 5/9
Moisture: 8/9
Nutrients: 6/9

Taxonomy resolved against GBIF.

Questions people ask

How fast does it grow?: It is a very fast grower, often adding several feet per year.
Can I plant it near my house?: No, its massive size and aggressive root system make it unsuitable for small yards or near foundations.

Where the name comes from

The name occidentalis means western, referring to its native range in the Western Hemisphere, while Platanus comes from the Greek word for broad, describing its large leaves.

Good to know

It is one of the largest deciduous trees in North America.
The bark peels off in irregular plates to reveal a creamy white inner layer.
It is often found growing naturally along riverbanks and streams.
The wood is hard and was historically used for butcher blocks.
It can live for several hundred years in ideal conditions.

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This guide was generated with AI on September 26, 2026 and checked against GBIF taxonomy. It is general information, not horticultural or veterinary advice. Read about how we build these guides.