Olearia traversiorum 'Tweedledum' (v)

RHS Plant Profile
Chatham Island tree daisy 'Tweedledum'

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Synonyms

Olearia traversii 'Tweedledum'

Plants for pollinators
Shrubs
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A vigorous evergreen shrub, that can reach up to 8m in ideal conditions. Leaves are oval, glossy, dark green with lime and creamy yellow splashes in the centre and whitish felting on the undersides. Small, grey-white flowers are produced in early summer

Position

Full sun

Soil Types

Chalk, Loam, Sand

Max Height

4-8 metres

Max Spread

4-8 metres

Size

Time to Maturity
10–20 years
Max Spread
4-8 metres
Max Height
4-8 metres

Growing Conditions

Chalk Loam Sand
Moisture
Well–drained
pH
Acid or Alkaline or Neutral

Position

Full sun
Aspect
South–facing or West–facing
Exposure
Exposed or Sheltered
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)
H4

Colour & Scent

Season Stem Flower Foliage Fruit
Spring
Summer
Autumn
Winter

Botanical Details

Family
Asteraceae
Native to GB/Ireland
No
Foliage
Evergreen
Habit
Bushy
Genus
Olearia can be evergreen shrubs, small trees or herbaceous perennials, with simple, leathery, toothed or entire leaves and corymbs of daisy-like flower-heads
Name Status
Accepted

How to Grow

Cultivation

Grow in fertile, well drained soil in full sun. Thrives in chalky soils. In milder areas, handles coastal exposure well and makes a good option for hedging or windbreaks

Propagation

Propagate by semi-ripe cuttings in summer

Suggested planting locations and garden types

  • Coastal
  • Cottage and informal garden
  • Wildlife gardens
  • Hedging and screens

Pruning

Pruning group 8. Trim lightly to maintain a compact habit. Can tolerate hard pruning if necessary

Pests

Generally pest-free

Diseases

Generally disease-free but may be susceptible to honey fungus (rarely)