• 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 (Superba Group) 'Irene Nuss' (C)

begonia 'Irene Nuss'

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 'Irene Nuss'

© RHS 2001

  • Other common names begonia 'Irene Nuss'

  • 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 Cane-stem begonias are erect, evergreen perennials with fibrous roots and cane-like stems with asymmetrical, strongly toothed leaves, often strikingly marked, and showy flower clusters in spring or summer

  • Details 'Irene Nuss' is an evergreen perennial to 1.2m in height, with erect stems bearing large leaves, bronze-green above, reddish beneath; pink flowers in pendulous clusters

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)

    H1B

Colour

Sunlight

  • Partial Shade

  • Aspect South-facing or East-facing

  • Exposure Sheltered

Soil

  • Chalk

    Sand

  • Chalk

    Clay

  • Chalk

    Loam

  • MoistureWell-drained, Moist but well-drained

  • SoilSand, Clay, Loam

  • 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 Under glass grow in light, well-drained loam-based or loam-less potting compost in filtered light with shade from hot sun at an optimum of 19 °C. Will not tolerate continuous direct sunlight or waterlogging. Water moderately when in growth and apply a balanced liquid fertiliser at alternative waterings

Propagation Propagate by leaf cuttings

Suggested planting locations and garden types Patio & Container Plants

How to care

Pruning Cut back over long canes to 2 or 3 buds in late spring

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

Diseases May be subject to powdery mildews, stem rot and rhizome rot

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