• 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

Senecio viravira

dusty miller

  • Other common names dusty miller

  • Synonyms Senecio argentinus
    Senecio leucostachys

  • Family Asteraceae

  • Genus Senecio can be annuals, biennials, perennials, climbers or shrubs, some succulent, with simple or pinnately divided leaves and daisy-like flowers, occasionally without ray-florets

  • Details S. viravira is a small evergreen shrub of open habit with finely divided silvery-white leaves to 6cm long. Rather inconspicuous button-like, creamy-yellow flower-heads 6mm wide, in loose clusters in summer and autumn

Characteristics

  • Foliage Evergreen

  • 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

Soil

  • Chalk

    Chalk

  • Loam

    Loam

  • Sand

    Sand

  • MoistureWell-drained

  • SoilChalk, Loam, Sand

  • pHAcid, Alkaline, Neutral

Size

  • Ultimate height 0.1-0.5 metres

  • Ultimate spread 0.5-1 metres

  • Time to ultimate height 5-10 years

How to grow

Cultivation Grow in a moderately fertile, well-drained soil in full sun

Propagation Propagate by seed in spring at 19-24°C (66-75°F). Take semi-ripe cuttings in mid- or late summer

Suggested planting locations and garden types Flower borders and beds Gravel Garden Patio & Container Plants Rock Garden City & Courtyard Gardens Coastal Cottage & Informal Garden

How to care

Pruning Trim over after flowering to keep plants compact

Pests May suffer from glasshouse whitefly, glasshouse red spider mite and aphids may be a problem under glass

Diseases Rust can be a problem

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