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Populus deltoides

eastern cottonwood

Large, fast-growing, specimen or screening tree reaching 30m, with glossy, bright green, triangular leaves, strongly balsam-scented when young. Red male and green female catkins to 10cm long are produced on separate trees in early spring

Other common names
American cottonwood
balsam poplar
see moreberry-bearing poplar
Carolina poplar
cottonwood
necklace poplar
northern cottonwood
great plains cottonwood
Synonyms
Populus monilifera
Populus sargentii
Size
Ultimate height
Higher than 12 metres
Time to ultimate height
20–50 years
Ultimate spread
Wider than 8 metres
Growing conditions
Chalk
Clay
Loam
Sand
Moisture
Moist but well–drained, Poorly–drained, Well–drained
pH
Acid, Alkaline, Neutral
Colour & scent
StemFlowerFoliageFruit
Spring Green Red Green
Summer Green
Autumn Green
Winter
Position
  • Full shade
  • Partial shade
Aspect

East–facing or North–facing or South–facing or West–facing

Exposure
Exposed or Sheltered
Hardiness
H6
Botanical details
Family
Salicaceae
Native to the UK
No
Foliage
Deciduous
Habit
Spreading branched
Genus

Populus are deciduous trees, mostly very fast-growing and large, with male and female catkins on separate trees, opening before the leaves. Male catkins are the more ornamental, female ones can be a nuisance from the cottony, wind-blown seeds

Name status

Correct

Plant range
C & E. Canada to Mexico

How to grow

Cultivation

Tolerates most soils except those that are constantly waterlogged and best in deep, fertile, moist but well-drained soil in full sun. Avoid growing within 40m of buildings as the vigorous root system may damage drains and foundations, particularly in clay soils and has the potential to become a nuisance

Propagation

Propagate by hardwood cuttings in winter and suckers in autumn or late winter

Suggested planting locations and garden types
  • Low Maintenance
  • Hedging and screens
Pruning

Pruning group 1 in late summer to avoid bleeding from pruning cuts

Pests

May be susceptible to leaf beetles, sawflies and caterpillars

Diseases

May be susceptible to leaf spots, poplar bacterial canker, tree rusts and honey fungus

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