• 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

Bergenia 'Sunningdale'

elephant's ears 'Sunningdale'

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
elephant's ears 'Sunningdale'

© RHS

  • Other common names elephant's ears 'Sunningdale'

  • Family Saxifragaceae

  • Genus Bergenia are evergreen rhizomatous perennials with leathery, rounded leaves and dense, erect clusters of bell-shaped pink or white flowers in spring

  • Details 'Sunningdale' has deep-pink flowers with redder centres held over erect leaves in a range of surface colours, with striking red reverses

Characteristics

  • Foliage Evergreen

  • Habit Mat 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

  • Full Sun

  • Partial Shade

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

  • Exposure Exposed or Sheltered

Soil

  • Loam

    Loam

  • Clay

    Clay

  • Sand

    Sand

  • Chalk

    Chalk

  • MoistureMoist but well-drained

  • SoilLoam, Clay, Sand, Chalk

  • pHAcid, Alkaline, 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 Easy to grow in fertile, moist but well-drained soil in full sun or partial shade; tolerant of dry shade or poor soil in an open exposed position. Good light conditions will enable the best leaf colour to develop. Mulch in autumn

Propagation Divide deteriorating clumps or root rhizome sections from them in early spring. After flowering or in autumn, lift and sever new plantlets from the ends of the long rhizomes and replant, leaving the parent to flower. Plantlets should flower the next year

Suggested planting locations and garden types Banks and Slopes Flower borders and beds Ground Cover City & Courtyard Gardens Cottage & Informal Garden

How to care

Pruning Remove faded flower spikes and older brown or damaged leaves in spring

Pests Susceptible to vine weevil, leaf and bud eelworm, slugs and snails and some caterpillars

Diseases Leaf spot may be a problem and dry brown rot may affect the rhizomes

Advertise here

Did you find the information you were looking for?

RHS members can get exclusive individual advice from the RHS Gardening Advice team.

Join the RHS now

Get involved

We're a UK charity established to share the best in gardening. We want to enrich everyone's life through plants, and make the UK a greener and more beautiful place.