• AGM plants

    AGM plants have been through a rigourous 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

Uvularia grandiflora

Bellwort

AGM plants

AGM plants have been through a rigourous 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
Bellwort

© � RHS 1999

  • Other common names Bellwort
    Cornflower

    Large-flowered bellwort
    Merry bells
    Throat root
    Wood daffodil

    see more
  • Synonyms Uvularia grandiflora Wisley Strain

  • Genus Uvularia are rhizomatous herbaceous perennials with arching stems bearing alternate, ovate leaves and nodding, narrowly bell-shaped yellow flowers

  • Family Colchicaceae / Colchicaceae

  • Species U. grandiflora is a perennial to 75cm in height, with arching stems bearing bright green, lanceolate leaves and terminal clusters of nodding, narrowly bell-shaped yellow flowers with narrow, twisted tepals

  • Plant range E North America

Characteristics

  • Foliage Deciduous

  • Habit Clump-forming

  • 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)
    Old hardiness ratings

    While we update our systems with the new hardiness ratings you may still see old hardiness ratings in your search results. These are denoted as 'Old'.

    • H1 - Requires heated glass
    • H2 - Requires unheated glass
    • H3 - Hardy outside in some regions of the UK
    • H4 - Hardy throughout the UK
    • H1 + H3 - Requires heated glass but may be grown outside in summer

    For full details of the hardiness ratings see

    see more

    H5

Colour

Sunlight

  • Partial Shade

  • Full Shade

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

  • Exposure Sheltered

Soil

  • Chalk

    Sand

  • Chalk

    Loam

  • Chalk

    Chalk

  • MoistureMoist but well-drained

  • SoilSand, Loam, Chalk

  • pHAcid, 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 Grow in fertile, humus-rich, moist but well-drained soil in deep or partial shade

Propagation Propagate by seed in pots in a cold frame as soon as seed is ripe. Propagate by division in early spring

Suggested planting locations and garden types Flower borders and beds Underplanting of Roses and Shrubs

How to care

Pruning No pruning required

Pests Slugs and snails may be a problem

Diseases Generally disease free

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