• 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

Scabiosa 'Butterfly Blue'

scabious 'Butterfly Blue'

  • Other common names scabious 'Butterfly Blue'

  • Synonyms Scabiosa columbaria 'Butterfly Blue'
    Scabiosa Butterfly Blue

    Scabiosa 'Butterfly Blue Beauty'
    Scabiosa 'Irish Perpetual Flowering'
    Scabiosa 'Perpetual Flowering'

    see more
  • Family Caprifoliaceae

  • Genus Scabiosa can be annuals, biennials or herbaceous or evergreen perennials, with simple or pinnately lobed leaves and characteristic flower-heads with enlarged outer florets

  • Details 'Butterfly Blue' is a herbaceous perennial to 40cm, forming a mound of ferny foliage and producing pale blue, pincushion flowers over a long period from early summer into autumn

Characteristics

  • Foliage Deciduous

  • Habit Clump-forming

  • 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 or East-facing

  • Exposure Exposed or Sheltered

Soil

  • Chalk

    Chalk

  • Loam

    Loam

  • Sand

    Sand

  • MoistureWell-drained

  • SoilChalk, Loam, Sand

  • pHAlkaline, Neutral, Acid

Size

  • Ultimate height 0.1-0.5 metres

  • Ultimate spread 0.1-0.5 metres

  • Time to ultimate height 2-5 years

How to grow

Cultivation Grow in full sun and protect from winter wet

Propagation Propagate by division or take basal cuttings

Suggested planting locations and garden types Drought Resistant Flower borders and beds Garden Edging City & Courtyard Gardens Cottage & Informal Garden Coastal Patio & Container Plants Wildlife Gardens

How to care

Pruning Deadhead to prolong flowering, cut down stems in autumn

Pests Generally pest free

Diseases Generally disease free

Advertise here

Did you find the information you were looking for?

RHS members can get exclusive individual advice from the RHS Gardening Advice team.

Join the RHS now