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Helianthus annuus 'Pastiche'

sunflower 'Pastiche'

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
sunflower 'Pastiche'

© RHS 2000

  • Other common names sunflower 'Pastiche'

  • Family Asteraceae

  • Genus Helianthus can be tall, erect annuals, tuberous or rhizomatous perennials, with coarse simple leaves and large daisy-like flower-heads

  • Details 'Pastiche' is a branching annual with single, dark-centred flowers 8-15cm across, in shades of light and deep yellow, orange-red and mahogany

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)

    H4

Colour

Sunlight

  • Full Sun

  • Aspect South-facing or West-facing

  • Exposure Sheltered or Exposed

Soil

  • Chalk

    Chalk

  • Clay

    Clay

  • Sand

    Sand

  • Loam

    Loam

  • MoistureMoist but well-drained

  • SoilChalk, Clay, Sand, Loam

  • pHAlkaline, Neutral

Size

  • Ultimate height 1-1.5 metres

  • Ultimate spread 0.5-1 metres

  • Time to ultimate height 1-2 years

How to grow

Cultivation Grow in moderately fertile, neutral to alkaline, humus-rich, moist but well-drained soil in full sun

Propagation Propagate by seed sown in-situ or in a pots or modules in spring

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

How to care

Pruning Cut back after flowering

Pests Can get slugs and snails

Diseases May be affected by powdery mildews and sclerotinia diseases

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