Populus lasiocarpa

RHS Plant Profile
Chinese necklace poplar

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Chinese necklace poplar RHS 1999
Chinese necklace poplar RHS
Trees
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A large deciduous tree to 20m tall, the handsome ovate leaves up to 30cm long, with conspicuous crimson stalks and midribs. Yellow male, or green female catkins to 25cm long open in spring

Position

Full sun

Soil Types

Chalk, Clay, Loam, Sand

Max Height

Higher than 12 metres

Max Spread

wider than 8 metres

Size

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

Growing Conditions

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

Position

Full sun
Aspect
South–facing
Exposure
Exposed or Sheltered
Hardiness

Hardiness Ratings

All ratings refer to the UK growing conditions unless otherwise stated. Minimum temperature ranges (in degrees C) are shown in brackets

  • H1A: under glass all year (>15C)
  • H1B: can be grown outside in the summer (10 - 15)
  • H1C: can be grown outside in the summer (5 - 10)
  • H2: tolerant of low temperatures, but not surviving being frozen (1 to 5)
  • H3: hardy in coastal and relatively mild parts of the UK (-5 to 1)
  • H4: hardy through most of the UK (-10 to -5)
  • H5: hardy in most places throughout the UK even in severe winters (-15 to -10)
  • H6: hardy in all of UK and northern Europe (-20 to -15)
  • H7: hardy in the severest European continental climates (< -20)
H6

Colour & Scent

Season Stem Flower Foliage Fruit
Spring
Summer
Autumn
Winter

Botanical Details

Family
Salicaceae
Native to GB/Ireland
No
Foliage
Deciduous
Habit
Bushy
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
China

How to Grow

Cultivation

Cultivated for very rapid growth as a specimen tree; useful as windbreaks. This species will tolerate most soils except those that are constantly waterlogged and in full sun. Avoid growing within 40m of buildings as the vigorous root system may damage drains and foundations, particularly on clay soils; has the potential to become a nuisance

Propagation

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

Suggested planting locations and garden types

  • Coastal
  • Cottage and informal garden
  • Flower borders and beds

Pruning

Pruning group 1 in late summer to avoid bleeding from pruning cuts. Established trees need little pruning; sucker removal in autumn or winter

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