• 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

Abies balsamea Hudsonia Group

Hudson fir

Hudson fir

© RHS 2000

  • Other common names Hudson fir

  • Synonyms Abies balsamea f. hudsonia

  • Family Pinaceae

  • Genus Abies are evergreen conifers, often very tall, with whorled branches bearing flattened, linear leaves, often whitish beneath, and on the upper branches, large cones which break up whilst attached to the tree

  • Details Hudsonia Group are slow-growing dwarf evergreen conifers, with a compact bun-shaped habit, rather broader than tall, and closely branched stems bearing dense, short dark green needles


  • Foliage Evergreen

  • 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)




  • Full Sun

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

  • Exposure Sheltered


  • Chalk


  • Chalk


  • Chalk


  • MoistureMoist but well-drained

  • SoilLoam, Clay, Sand

  • pHAcid, Neutral


  • Ultimate height 0.5-1 metres

  • Ultimate spread 1-1.5 metres

  • Time to ultimate height 10-20 years

How to grow

Cultivation Grow in moist but well-drained slightly acidic soil. Protect from cold winds. Does not produce cones

Propagation Propagate by grafting

Suggested planting locations and garden types Low Maintenance Architectural City & Courtyard Gardens Rock Garden Gravel Garden Patio & Container Plants

How to care

Pruning No pruning required

Pests Can get aphids and adelgids

Diseases Generally disease free

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