• 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

Fritillaria pallidiflora

Siberian fritillary

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
Siberian fritillary

© RHS 2003

  • Other common names Siberian fritillary

  • Family Liliaceae

  • Genus Fritillaria are bulbous herbaceous perennials with lance-shaped or linear leaves and nodding bell-shaped or bowl-shaped flowers that may be solitary or in racemes or umbels

  • Details F. pallidiflora is a perennial to 50cm, with glaucous, lance-shaped leaves and 1-5 nodding greenish-yellow flowers 3-4cm in length, slightly marked brown within, in early summer

  • Plant range E Siberia, NW China

Characteristics

  • Foliage Deciduous

  • Habit Columnar/Upright

  • 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 North-facing or West-facing or East-facing

  • Exposure Exposed or Sheltered

Soil

  • Chalk

    Chalk

  • Clay

    Clay

  • Sand

    Sand

  • Loam

    Loam

  • MoistureWell-drained, Moist but well-drained

  • SoilChalk, Clay, Sand, 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 Grows well in most fertile, humus-rich, well-drained soils and prefers cool, moist summers. Handle the fragile bulbs carefully and plant at four times own depth

Propagation Propagate by seed, sown in pots in a cold frame in autumn. Needs exposure to winter cold for germination in spring. Divide offsets in late summer

Suggested planting locations and garden types Flower borders and beds Cottage & Informal Garden Rock Garden Wildflower meadow

How to care

Pruning No pruning required

Pests Prone to slugs and lily beetle

Diseases Generally disease free

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