• 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 jeffreyi

Jeffrey's pine

Jeffrey's pine

© � RHS 2000

  • Other common names Jeffrey's pine
    Black pine

  • 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. jeffreyi is a large evergreen tree, conical when young, with slender, grey-green needles to 22cm in length, in bundles of three. Cones ovoid, to 20cm in length

  • Plant range US to Mexico

Characteristics

  • Foliage Evergreen

  • Habit Columnar_Upright#Columnar/Upright

Colour

Sunlight

  • Full Sun

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

  • Exposure Exposed or Sheltered

Soil

  • Chalk

    Chalk

  • Chalk

    Clay

  • Chalk

    Sand

  • Chalk

    Loam

  • MoistureWell-drained

  • SoilChalk, Clay, Sand, Loam

  • pHAcid, Alkaline, Neutral

Size

  • Ultimate height

    Higher than 12 metres

  • Ultimate spread

    2.5-4 metres

  • Time to ultimate height

    20-50 years

How to grow

Cultivation Grow in any well-drained soil. Large specimen tree

Propagation Propagate by seed

Suggested planting locations and garden types Low Maintenance Architectural

How to care

Pruning No pruning required

Pests May be attacked by adelgids, aphids, sawflies/sawfly and pine shoot moth

Diseases May be subject to pine needle cast

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