• AGM plants

    AGM plants have been through a rigourous 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

Anemone blanda 'White Splendour'

Winter windflower 'White Splendour'

AGM plants

AGM plants have been through a rigourous 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
Winter windflower 'White Splendour'

© � RHS

  • Other common names Winter windflower 'White Splendour'

  • Genus Anemone are herbaceous perennials with fibrous, rhizomatous or tuberous rootstocks, palmately lobed leaves and saucer-shaped, usually 5-petalled flowers

  • Family Ranunculaceae / Ranunculaceae

  • Species 'White Splendour' is rhizomatous perennial to 15cm tall, with leaves divided into three, lobed and toothed segments. Solitary pure white flowers 4cm wide, with 9-14 strap-shaped petals, open from early to late spring

Characteristics

  • Foliage Deciduous

  • Habit Mat forming

  • Toxicity Contact with sap may irritate skin

  • 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)
    Old hardiness ratings

    While we update our systems with the new hardiness ratings you may still see old hardiness ratings in your search results. These are denoted as 'Old'.

    • H1 - Requires heated glass
    • H2 - Requires unheated glass
    • H3 - Hardy outside in some regions of the UK
    • H4 - Hardy throughout the UK
    • H1 + H3 - Requires heated glass but may be grown outside in summer

    For full details of the hardiness ratings see

    see more

    H4

Colour

Sunlight

  • Full Sun

  • Aspect South-facing or East-facing

  • Exposure Exposed or Sheltered

Soil

  • Chalk

    Loam

  • Chalk

    Sand

  • MoistureWell-drained

  • SoilLoam, Sand

  • pHAcid, Alkaline, Neutral

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 well-drained, humus-rich soil or a light, sandy soil in sun although tolerates partial shade. Needs dry dormancy after flowering. Mulch for winter protection. Can be grown in a container if garden soil not suitable

Propagation Propagate by division of tubers in summer when they are dormant

Suggested planting locations and garden types Banks and Slopes Flower borders and beds Garden Edging Ground Cover Low Maintenance Underplanting of Roses and Shrubs Cottage & Informal Garden Patio & Container Plants Rock Garden

How to care

Pruning No pruning required

Pests May be attacked by leaf and bud eelworms, caterpillars and slugs

Diseases May be subject to leaf spot, powdery mildews and smut

Advertise here