• 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

Hosta 'Wide Brim' (v)

plantain lily 'Wide Brim'

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
plantain lily 'Wide Brim'

© RHS 2002

  • Other common names plantain lily 'Wide Brim'

  • Family Asparagaceae

  • Genus Hosta are clump-forming herbaceous perennials with simple, ovate or lance-shaped leaves, often attractively coloured or variegated, and erect racemes of nodding, funnel or bell-shaped flowers in early summer

  • Details 'Wide Brim' is a clump-forming perennial with broadly heart-shaped, puckered dark green leaves broadly margined with creamy-yellow. Funnel-shaped pale lavender flowers on stems to 60cm in height

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)

    H7

Colour

Sunlight

  • Partial Shade

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

  • Exposure Sheltered

Soil

  • Chalk

    Loam

  • Chalk

    Clay

  • MoistureMoist but well-drained

  • SoilLoam, Clay

  • pHAcid, Neutral

Size

  • Ultimate height 0.1-0.5 metres

  • Ultimate spread 0.5-1 metres

  • Time to ultimate height 2-5 years

How to grow

Cultivation Grow in fertile, moist but well-drained soil with shelter from cold, dry winds. Best in slightly acid or neutral soils, it will grow in alkaline soils if enriched but shallow, chalky soils can cause leaves to yellow. Partial shade is best but it can tolerate some sun if the soil is kept moist. Mulch in spring

Propagation Propagate by division in late summer or early spring

Suggested planting locations and garden types Flower borders and beds Cut Flowers Ground Cover Underplanting of Roses and Shrubs Cottage & Informal Garden City & Courtyard Gardens Patio & Container Plants

How to care

Pruning Remove spent foliage as required and clear up dead foliage when it dies back at the end of the growing season

Pests Prone to slugs and snails; plants in pots can get vine weevil

Diseases Generally disease free

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