• 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

Galanthus reginae-olgae subsp. reginae-olgae

Queen Olga's snowdrop

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
Queen Olga's snowdrop

© RHS

  • Other common names Queen Olga's snowdrop

  • Synonyms Galanthus corcyrensis

  • Family Amaryllidaceae

  • Genus Galanthus are dwarf bulbous perennials with linear or strap-shaped leaves, and solitary, often honey-scented, nodding flowers with 3 white outer tepals and 3 smaller inner ones often marked with green

  • Details G. reginae-olgae supsp. reginae-olgae is a small bulbous perennial producing white flowers with green markings in autumn, just as the 10cm-long leaves are starting to emerge

Characteristics

  • Foliage Deciduous

  • Habit Tufted

  • Toxicity Ingestion may cause mild stomach upset

  • 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

  • Full Sun

  • Partial Shade

  • Aspect South-facing or West-facing

  • Exposure Sheltered

Soil

  • Chalk

    Chalk

  • Sand

    Sand

  • Loam

    Loam

  • MoistureWell-drained

  • SoilChalk, Sand, Loam

  • pHAcid, Alkaline, Neutral

Size

  • Ultimate height Up to 10 cm

  • Ultimate spread 0-0.1 metre

  • Time to ultimate height 2-5 years

How to grow

Cultivation Needs well-drained soil and will not tolerate winter wet. In cold areas grow in containers and protect over winter

Propagation Propagate by seed, sown in containers in an open frame when ripe or division when foliage dies back

Suggested planting locations and garden types Underplanting of Roses and Shrubs Cottage & Informal Garden Rock Garden Patio & Container Plants

How to care

Pruning No pruning required

Pests Can get narcissus bulb fly and slugs

Diseases May be infected by snowdrop grey mould

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