The illustrated growing guide
American Sycamore
Platanus occidentalis
Family Platanaceae
Est. zones 4-9
A giant, fast native shade tree famous for its camouflage bark peeling to brilliant creamy-white up top — a glowing presence in the winter landscape. Floodplain-tough and great for big wet sites, but it's genuinely huge and messy (leaves, bark, seed balls), so it needs room, not a small yard. For streets and tight spots, its hybrid the London plane is the tougher, tidier choice.
Full Sun
Moderate water
Fast growth
Native to North AmericaI
Overview
Will american sycamore suit your garden, and what goes wrong.
Will it fruit where you are?
Enter your ZIP — we look up your USDA hardiness zone (2023 map) and check it against what american sycamore actually needs.
Hardy inZones 4-9American Sycamore at a glance
Common american sycamore problems
- Sycamore Lace Bug
- Anthracnose (browns spring foliage in wet springs; tree recovers)
- Powdery Mildew
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Growing
Light, water, soil, propagation and the season’s jobs.
How to grow american sycamore: light, water & soil
How to plant & propagate american sycamore
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The year
What american sycamore asks for, month by month.
The american sycamore year, month by month
BloomPruneHarvestWhat each band means
- Bloom — flowers open — pollinators working, frost on blossoms is the danger.
- Prune — shape it now — cuts heal cleanly and structure is visible.
- Harvest — picking time — check ripeness every few days.
The american sycamore year as text
- Jan pruning, harvest
- Feb pruning, harvest
- Mar bloom
- Apr bloom
- May bloom
- Jun quiet month
- Jul quiet month
- Aug quiet month
- Sep quiet month
- Oct quiet month
- Nov quiet month
- Dec pruning, harvest
These are the species' typical months — expect them a few weeks earlier in warm zones and later in cold ones. Watch the plant, not just the calendar.
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Ecology & uses
What it does for the garden, and what it is grown for.
American Sycamore in the garden system
- Canopy layer tree
What american sycamore is grown for
✓ Commonly eaten
Harvesting & storing american sycamore
Round seed balls dangle through winter.
Edibility, identification, and traditional-use notes here are general reference — not medical or veterinary advice, and not a claim that any plant treats or prevents anything. Medicinal ratings record how strongly a plant features in herbal tradition, nothing more. Never eat or dose a plant you have not positively identified. More on how to use this library.
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Cultivars
Named varieties of american sycamore, ruled as a catalogue.
Best american sycamore varieties & cultivars
Straight species; London plane (P. × acerifolia) is the disease-resistant street-tree hybrid
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Sources & plant ID
Where the care distinctions come from, and how the plant is filed.
Research basis
Sources behind this profile
No extension citations are attached to american sycamoreyet. The care figures below come from the library's own catalogue rather than a traced primary source.
Plant ID
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Where to buy
Third-party nurseries — not Story Thyme Farms.
Third-party nurseries, not Story Thyme Farms. Prices are theirs.
Story Thyme Farms may earn a small commission from these links, at no cost to you — it never changes what we recommend.
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Questions
American Sycamore questions, answered straight.
Is american sycamore safe for kids and pets?
American Sycamore is commonly eaten and isn't considered toxic, but "commonly eaten" isn't a guarantee for any particular person or animal — allergies, quantity, and which part you eat all matter. Never eat a plant you haven't positively identified, and check with a vet before letting pets or livestock graze anything new.
When do you harvest american sycamore?
Round seed balls dangle through winter.
How do you propagate american sycamore?
Seed (stratify), cuttings, or layering.
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Elsewhere
Where american sycamore sits in the library.
Black Locust
Sassafras
Eastern Hemlock
Northern Catalpa