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Plant guide

Sycamore Maple.

Acer pseudoplatanus

Pronounced AY-ser soo-doh-plah-TAY-nus

Also known as False Planetree, Great Maple

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Acer pseudoplatanus
Photo by 謝麗霦 (CC BY) via gbif

The sycamore maple is a sturdy, deciduous tree that brings a classic look to large landscapes. It is known for its impressive size and ability to tolerate harsh conditions. You will love how its broad canopy provides excellent shade during the summer.

Another photo of Sycamore Maple
Photo by Dan Scali (CC BY) via iNaturalist

At a glance

Care level
Easy
Plant type
Deciduous tree
Light
Full sun to partial shade
Indoor light
Bright indirect
Water
Every 7 to 14 days
Mature size
30 to 35 meters
Growth rate
Fast
Hardiness
USDA 4 to 7
Bloom time
Mid to late spring

Care

Plant this tree in a spot with plenty of room to accommodate its large root system. Keep an eye out for leaf spots or aphids during humid weather. Ensure the soil stays consistently moist but not waterlogged as it settles in.

Watering
Water deeply during the first few years until the tree is well established.
Feeding
Apply a balanced, slow release fertilizer in early spring.
Pruning
Prune during the dormant winter season to remove dead or crossing branches.
Repotting
Repotting is only relevant for young container specimens before they are moved to the ground.
Soil
Well drained, fertile loam
Soil pH
6.0 to 7.5
Temperature
-25 to 35°C
Humidity
40 to 70%
Drought tolerance
Moderate
Lifespan
Perennial, typically 100 to 400 years
Deer and rabbits
Moderate

Signs it needs repotting

  • Roots circling the bottom of the pot
  • Stunted growth during the active season

Safety

People
The plant is not considered toxic to humans, though the sap can be sticky.
Pets
This plant is generally considered non toxic to cats and dogs.
Children
The winged seeds, or samaras, are a potential choking hazard for small children if ingested.
Contact allergens
The sap may cause mild skin irritation in sensitive individuals.
Airborne allergens
The windborne pollen can trigger seasonal allergies for some people.
Edibility
The seeds are not typically consumed by humans and may cause digestive upset if ingested in quantity.

How to identify it

  • Five lobed dark green leaves
  • Rough, flaking grey bark
  • Distinctive winged samara seeds
  • Yellowish green hanging flower clusters
Height
20 to 35m
Spread
15 to 25m
Leaves
dark green, deciduous
Flowers
yellowish green, 0.5 to 1cm
Fruit
brown, Autumn

Problems to watch for

    Check your sycamore maple from a photo

    Pocket Botanist looks at a photo of your plant and tells you what's wrong and what to try first.

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    Growing it

    Propagation
    seed
    When to plant
    spring, autumn
    Overwintering
    No special winter care is needed as it is fully hardy. Ensure the soil remains well drained to prevent root issues during wet winters.
    In containers
    It is not suitable for long term container growth due to its massive size.

    Seed

    1. Collect mature winged seeds in autumn.
    2. Sow seeds in pots of moist soil.
    3. Place in a cold frame for winter stratification.
    4. Transplant seedlings in spring.

    Plant shade tolerant groundcovers beneath the tree to manage the soil moisture.

    Grows well with

    • English Ivy · It handles the deep shade beneath the canopy well.
    • Common Foxglove · It thrives in the woodland conditions provided by the tree.

    Similar species

    • Norway Maple · It has a similar growth habit but different leaf shape.
    • Sycamore Maple · This is the same species, often confused with other maples.

    Science

    Family
    Sapindaceae
    Genus
    Acer
    Order
    Sapindales
    Class
    Magnoliopsida
    Native range
    Central and Southern Europe and Western Asia.
    Conservation
    This species is widely naturalized and not of conservation concern.

    It thrives in cool, moist climates and often colonizes disturbed woodland areas.

    Value to wildlife
    nectar source, nesting site
    Pollinators
    bees
    Uses
    shade tree, timber, windbreak

    Through the year

    JFMAMJJASOND
    Flowering
    Fruiting
    Foliage

    Ecological indicators

    Salinity
    4/9
    Soil reaction
    6/9
    Light
    5/9
    Temperature
    4/9
    Moisture
    5/9
    Nutrients
    6/9

    Taxonomy resolved against GBIF.

    Questions people ask

    Is it a good street tree?
    It is very hardy but can grow quite large, so it needs plenty of space.
    Does it drop a lot of debris?
    Yes, it sheds many winged seeds and leaves in the autumn.

    Where the name comes from

    The name pseudoplatanus means false plane tree, referring to its resemblance to the true plane tree, Platanus.

    Good to know

    • It is often called the sycamore in the UK.
    • The wood is prized for making musical instruments.
    • It can live for over 400 years in ideal conditions.

    Keep your sycamore maple growing

    This page is a general guide. Save your plant in Pocket Botanist and you get care reminders timed for this plant, plus a care history that shows what worked.

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