Platanus occidentalis

RHS Plant Profile
American plane

Other common names

American sycamore, buttonwood, water beech, western plane

Trees

A large, vigorous, broadly columnar tree, to 25m, with flaking brown, grey and cream bark and bright green, sycamore-like leaves with three or five, pointed lobes. Inconspicuous flowers are followed by spherical seed clusters, hanging in ones or twos on long stems, green at first then brown, and persisting into winter

Position

Full sun

Soil Types

Chalk, Clay, Loam, Sand

Max Height

Higher than 12 metres

Max Spread

4-8 metres

Size

Time to Maturity
20–50 years
Max Spread
4-8 metres
Max Height
Higher than 12 metres

Growing Conditions

Chalk Clay Loam Sand
Moisture
Well–drained
pH
Acid or Alkaline or Neutral

Position

Full sun
Aspect
West–facing or South–facing
Exposure
Exposed or Sheltered
Hardiness
H6

Colour & Scent

Season Stem Flower Foliage Fruit
Spring
Summer
Autumn
Winter

Botanical Details

Family
Platanaceae
Native to GB/Ireland
No
Foliage
Deciduous
Habit
Spreading branched
Potentially harmful
Contact with the hairs on the fruits may irritate the skin and respiriatory system. Wear gloves and other protective equipment when handling
Genus
Platanus are vigorous, large deciduous trees of stately appearance, with maple-like foliage and attractively patterned bark
Name Status
Correct
Plant Range
N America

How to Grow

Cultivation

Grow in moist, fertile soil in full sun, allowing enough space for a very large tree with a vigorous root system

Propagation

Propagate by seed, or hardwood cuttings in winter

Suggested planting locations and garden types

  • Low Maintenance

Pruning

Pruning group 1, but will tolerate severe pruning if necessary

Pests

May be susceptible to lace bugs

Diseases

May be susceptible to plane anthracnose and honey fungus