• 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

Digitalis purpurea f. albiflora (Thompson & Morgan)

White-flowered foxglove

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
White-flowered foxglove

© � RHS

  • Other common names White-flowered foxglove

  • Synonyms Digitalis purpurea 'Alba' (Thompson & Morgan)

  • Genus Digitalis can be biennials or usually short-lived perennials forming a rosette of simple leaves with bell-shaped flowers in slender, erect, usually one-sided racemes

  • Family Plantaginaceae / Plantaginaceae

  • Species D. purpurea f. albiflora is an erect biennial with tall, one-sided spires of pure white, unspotted flowers in summer

Characteristics

  • Foliage Semi-evergreen

  • Habit Columnar_Upright#Columnar/Upright

  • Toxicity Highly toxic by ingestion

  • 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

    H7

Colour

Sunlight

  • Full Sun

  • Partial Shade

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

  • Exposure Sheltered or Exposed

Soil

  • Chalk

    Sand

  • Chalk

    Loam

  • Chalk

    Chalk

  • MoistureMoist but well-drained

  • SoilSand, Loam, Chalk

  • pHNeutral, Acid, Alkaline

Size

  • Ultimate height

    1-1.5 metres

  • Ultimate spread

    0.1-0.5 metres

  • Time to ultimate height

    1-2 years

How to grow

Cultivation Grow in almost any soil, but avoid very wet or very dry situations. Prefers a humus-rich soil in partial shade but will grow in full sun

Propagation Propagate by seed sown in situ in spring

Suggested planting locations and garden types Banks and Slopes Flower borders and beds Cut Flowers Underplanting of Roses and Shrubs Coastal Cottage & Informal Garden Prairie Planting Wildflower meadow

How to care

Pruning Cut back after flowering to avoid problems with self seeding

Pests Generally pest free

Diseases May be subject to powdery mildews and a leaf spot

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