• 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

Trollius europaeus

globeflower

  • Other common names globeflower
    bolts

    common globeflower
    common golden ball
    gowan
    lapper gowan
    lopper gowan
    lockin gowan
    luckin gowan

    see more
  • Family Ranunculaceae

  • Genus Trollius are herbaceous perennials which form a clump of palmately lobed leaves, with erect stems bearing solitary, yellow, globose or bowl-shaped flowers composed of several petal-like sepals surrounding much-reduced nectar-bearing petals

  • Details T. europaeus is a variable herbaceous perennial forming compact clumps up to 80cm tall. Its leaves are up to 12cm wide and deeply divided into 3-5 lobes; each wedge-shaped segment is often further lobed and toothed. Clear lemon-yellow, spherical flowers 3-5cm in diameter are borne from late spring into early summer

  • Plant range Eur., Cauc., N America

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)

    H7

Colour

Sunlight

  • Partial Shade

  • Full Sun

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

  • Exposure Exposed or Sheltered

Soil

  • Loam

    Loam

  • Clay

    Clay

  • MoisturePoorly-drained, Moist but well-drained

  • SoilLoam, Clay

  • pHNeutral, Acid, Alkaline

Size

  • Ultimate height 0.5-1 metres

  • Ultimate spread 0.1-0.5 metres

  • Time to ultimate height 2-5 years

How to grow

Cultivation Grows best in deep, preferably heavy, moist soil that does not dry out, in full sun or partial shade

Propagation Propagate by division in spring

Suggested planting locations and garden types Flower borders and beds Cottage & Informal Garden Wildflower meadow

How to care

Pruning Cut back hard after flowering

Pests Generally trouble free

Diseases May be subject to powdery mildews

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