• 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

Begonia 'Olympia White' (Olympia Series) (S)

begonia 'Olympia White'

begonia 'Olympia White'

© RHS 1997

  • Other common names begonia 'Olympia White'

  • Family Begoniaceae

  • Genus Begonia can be annuals, evergreen or deciduous perennials or shrubs, with fibrous, tuberous or rhizomatous roots and usually asymmetrical leaves, often strikingly patterned, and small or large flowers, both male and female in the same cluster

  • Horticultural Group Semperflorens-Cultorum begonias are fibrous-rooted evergreen perennials, much used for summer bedding, with rounded, often attractively coloured leaves, and sprays of single or double flowers 1-2.5cm across in summer or throughout the year

  • Details 'Olympia White' is a bushy plant with glossy light green foliage and pure white flowers to 4cm across, in small sprays in summer

Characteristics

  • Foliage Evergreen

  • Habit Bushy

  • 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)

    H2

Colour

Sunlight

  • Partial Shade

  • Aspect East-facing or West-facing

  • Exposure Sheltered or Exposed

Soil

  • Chalk

    Loam

  • Chalk

    Sand

  • MoistureMoist but well-drained

  • SoilLoam, Sand

  • pHAcid, Neutral

Size

  • Ultimate height 0.1-0.5 metres

  • Ultimate spread 0.1-0.5 metres

  • Time to ultimate height 1-2 years

How to grow

Cultivation Grow in fertile, well-drained, neutral to slightly acid soil in partial shade

Propagation Propagate by seed or stem cuttings

Suggested planting locations and garden types Flower borders and beds City & Courtyard Gardens Cottage & Informal Garden Patio & Container Plants Coastal

How to care

Pruning Cut back after flowering

Pests May be attacked by caterpillars, aphids, mites, mealybugs, thrips and vine weevils

Diseases Susceptible to grey moulds, powdery mildews and stem rot

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