• 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

Digitalis lanata

Grecian foxglove

Grecian foxglove

© RHS 1999

  • Other common names Grecian foxglove
    woolly foxglove

    Austrian digitalis

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  • Family Plantaginaceae

  • 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

  • Details D. lanata is an erect perennial forming a rosette of evergreen lance-shaped leaves, with cream or pale yellow flowers 2.5cm long, veined with brown, in a long spike in summer

  • Plant range E Europe to Siberia

Characteristics

  • Foliage Evergreen

  • Habit Bushy

  • 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)

    H5

Colour

Sunlight

  • Partial Shade

  • Aspect West-facing or East-facing

  • Exposure Exposed or Sheltered

Soil

  • Loam

    Loam

  • Chalk

    Chalk

  • Sand

    Sand

  • Clay

    Clay

  • MoistureWell-drained, Moist but well-drained

  • SoilLoam, Chalk, Sand, Clay

  • pHAcid, Alkaline, Neutral

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 Will grow in almost any soil or situation except very wet or very dry. It will grow in partial shade, though generally does better in a sunnier situation

Propagation Propagate by seed sown in pots in a cold frame in late spring. Propagate by careful division in early spring or from basal cuttings, see softwood cuttings

Suggested planting locations and garden types Flower borders and beds Underplanting of Roses and Shrubs City & Courtyard Gardens Coastal Cottage & Informal Garden

How to care

Pruning Cut back main flower spike as it fades to encourage the growth of flowering side shoots

Pests Genrally trouble free

Diseases Genrally trouble free, though can suffer from leaf spot and powdery mildew

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