• AGM plants

    AGM plants have been through a rigorous trial and assessment programme. They are:

    • Excellent for ordinary use in appropriate conditions
    • Available to buy
    • Of good constitution
    • Essentially stable in form & colour
    • Reasonably resistant to pests & diseases

Populus alba 'Richardii'

white poplar 'Richardii'

  • Other common names white poplar 'Richardii'

  • Family Salicaceae

  • 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

  • Details 'Richardii' is a spreading, suckering, deciduous tree to about 12m with lobed leaves, greenish-yellow above, felted white beneath, and felted white young shoots. In early spring produces green female or red male catkins

Characteristics

  • Foliage Deciduous

  • Habit Bushy

  • 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

Sunlight

  • Full Sun

  • Aspect South-facing or North-facing or West-facing or East-facing

  • Exposure Exposed or Sheltered

Soil

  • Sand

    Sand

  • Clay

    Clay

  • Chalk

    Chalk

  • Loam

    Loam

  • MoistureMoist but well-drained, Well-drained, Poorly-drained

  • SoilSand, Clay, Chalk, Loam

  • pHAlkaline, Neutral, Acid

Size

  • Ultimate height 8-12 metres

  • Ultimate spread 4-8 metres

  • Time to ultimate height 20-50 years

How to grow

Cultivation Best in deep, fertile, well-drained soil in full sun, but tolerates both damp and dry soils

Propagation Propagate by hardwood cuttings in winter

Suggested planting locations and garden types Low Maintenance Cottage & Informal Garden

How to care

Pruning Pruning group 1 or pruning group 7 for best foliage effect

Pests Leaves may be eaten by leaf beetles, sawflies and caterpillars

Diseases Susceptible to leaf spots, poplar bacterial canker, honey fungus and tree rusts

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