• AGM plants

    AGM plants have been through a rigourous 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

Pinus ponderosa

Western yellow pine

Western yellow pine

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  • Other common names Western yellow pine
    Ponderosa pine

    Trucker pine

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  • Genus Pinus can be shrubs or large, evergreen trees, some species with attractive bark, developing an irregular outline with age and bearing long needle-like leaves in bundles of 2, 3 or 5; conspicuous cones may fall or remain on the tree for years

  • Family Pinaceae / Pinaceae

  • Species P. ponderosa is an evergreen conifer making a large tree with handsome, scaly brown bark. Needles dark green, to 25cm in length, mostly clustered at branch ends. Cones about 15cm in length

  • Plant range Western N America

Characteristics

  • Foliage Evergreen

  • Habit Bushy

Colour

Sunlight

  • Full Sun

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

  • Exposure Exposed or Sheltered

Soil

  • Chalk

    Sand

  • Chalk

    Clay

  • Chalk

    Chalk

  • Chalk

    Loam

  • MoistureWell-drained

  • SoilSand, Clay, Chalk, Loam

  • pHAcid, Alkaline, Neutral

Size

  • Ultimate height

    Higher than 12 metres

  • Ultimate spread

    4-8 metres

  • Time to ultimate height

    20-50 years

How to grow

Cultivation Grow in any well-drained soil. Good in coastal area and sandy soils

Propagation Propagate by seed sown in containers in a cold frame in spring

Suggested planting locations and garden types Architectural Coastal Cottage & Informal Garden

How to care

Pruning No pruning required

Pests May be attacked by adelgids, conifer aphid species, sawfly and pine shoot moth

Diseases May be subject to various needle cast diseases

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