• 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

Liriodendron tulipifera 'Fastigiatum'

tulip tree 'Fastigiatum'

tulip tree 'Fastigiatum'

© RHS 1999

  • Other common names tulip tree 'Fastigiatum'

  • Family Magnoliaceae

  • Genus Liriodendron are vigorous deciduous trees with attractively lobed leaves and green and orange, tulip-shaped flowers in summer; good autumn colour

  • Details 'Fastigiatum' is a broadly columnar tree to 20m tall, with erect branches bearing typical, lobed foliage turning yellow in autumn, and pale green flowers in summer when mature, each petal marked with orange near the base

Characteristics

  • Foliage Deciduous

  • Habit Columnar/Upright

  • 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

  • Partial Shade

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

  • Exposure Exposed or Sheltered

Soil

  • Sand

    Sand

  • Clay

    Clay

  • Loam

    Loam

  • MoistureWell-drained, Moist but well-drained

  • SoilSand, Clay, Loam

  • pHAcid, Neutral

Size

  • Ultimate height Higher than 12 metres

  • Ultimate spread 4-8 metres

  • Time to ultimate height more than 50 years

How to grow

Cultivation Grow as specimen tree in lime-free soil in sun or partial shade

Propagation Propagate by grafting

Suggested planting locations and garden types Flower borders and beds Architectural

How to care

Pruning Pruning group 1

Pests Generally pest free

Diseases Generally disease free

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