• 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

Scilla verna

spring squill

  • Other common names spring squill
    spring-flowered squill

    sea onion

    see more
  • Synonyms Scilla umbellata

  • Family Asparagaceae

  • Genus Scilla are perennial bulbs with narrow basal leaves and erect stems bearing racemes of star-shaped, flat or bell-shaped flowers which are often blue

  • Details S. verna is a dwarf bulbous perennial to 20cm, with linear leaves and small, starry violet-blue flowers in a dense raceme or corymb in early spring

  • Plant range W Europe to Faroe Is

Characteristics

  • Foliage Deciduous

  • Habit Tufted

  • Toxicity Ingestion may cause severe discomfort

  • 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

  • Full Sun

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

  • Exposure Sheltered

Soil

  • Sand

    Sand

  • Chalk

    Chalk

  • Loam

    Loam

  • MoistureWell-drained, Moist but well-drained

  • SoilSand, Chalk, Loam

  • pHAcid, Alkaline, Neutral

Size

  • Ultimate height 0.1-0.5 metres

  • Ultimate spread 0-0.1 metre

  • Time to ultimate height 2-5 years

How to grow

Cultivation Plant 10cm deep in late summer or early autumn in any moderately fertile, humus-rich, well-drained soil. Useful in prairie plantings especially in sandy coastal locations

Propagation Propagate by seed, sown, when ripe, in containers in a cold frame or separate offsets when dormant

Suggested planting locations and garden types Flower borders and beds Low Maintenance Wildlife Gardens Wildflower meadow Cottage & Informal Garden Prairie Planting Rock Garden

How to care

Pruning No pruning required

Pests Generally pest free

Diseases May be subject to a virus

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