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Olearia phlogopappa 'Comber's Blue'
  • RHS Plants for pollinators

dusty daisy bush 'Comber's Blue'

An upright shrub up to 2m high with oblong to narrowly obovate, aromatic leaves 3-4cm long with shallowly toothed wavy edges, grey-green above, densely covered with white or grey-white wool below, and many clusters up to 7cm across of flowerheads, each 3cm across and with mid-blue ray-florets and yellow centres, so that they look like shrubby Michaelmas daisies, but flowering in spring and early summer

Synonyms
Olearia 'Comber's Blue'
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Size
Ultimate height
1.5–2.5 metres
Time to ultimate height
5–10 years
Ultimate spread
1.5–2.5 metres
Growing conditions
Chalk
Loam
Sand
Moisture
Moist but well–drained, Well–drained
pH
Acid, Alkaline, Neutral
Colour & scent
StemFlowerFoliageFruit
Spring Blue Yellow Green Grey Silver White
Summer Blue Yellow Green Grey Silver White
Autumn Green Grey Silver White
Winter Green Grey Silver White
Position
  • Full sun
Aspect

South–facing or West–facing

Exposure
Exposed or Sheltered
Hardiness
H4
Botanical details
Family
Asteraceae
Native to GB / Ireland
No
Foliage
Evergreen
Habit
Columnar upright
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 a sheltered position in well-drained soil in full sun

Propagation

Propagate by semi-ripe cuttings in summer, by heeled hardwood cuttings of lateral shoots in a cold frame in early autumn, or by softwood cuttings treated with rooting hormone and rooted in a closed case or under mist in spring

Suggested planting locations and garden types
  • City and courtyard gardens
  • Coastal
  • Cottage and informal garden
  • Mediterranean climate plants
  • Wildlife gardens
  • Low Maintenance
  • Wall side borders
  • Flower borders and beds
Pruning

Pruning group 8 (early-flowering evergreen shrubs)

Pests

Generally pest-free

Diseases

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

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