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Shrubs

Olearia macrodonta

New Zealand holly

A vigorous, evergreen upright shrub or small tree to 6m in height, with spiny-toothed, ovate, grey-green leaves, white-felted beneath, up to 9cm in length. Small, fragrant white flowers are borne in large clusters in summer

Synonyms

Olearia dentata

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Ultimate height

2.5–4 metres

Time to ultimate height

10–20 years

Ultimate spread

2.5–4 metres

Chalk

Clay

Loam

Sand

Moisture

Well–drained

pH

Acid, Alkaline, Neutral

	Stem	Flower	Foliage	Fruit
Spring
Summer
Autumn
Winter

Full sun

Aspect

South–facing or North–facing or West–facing or East–facing

Exposure

Exposed or Sheltered

Drought resistance

Yes

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)

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: Correct
Plant range: New Zealand

How to grow

Cultivation

Grow in well-drained soil in full sun

Propagation

Propagate by semi-hardwood cuttings

Suggested planting locations and garden types

Coastal
Architectural
Cottage and informal garden
Mediterranean climate plants
Wildlife gardens
Low Maintenance
Hedging and screens
Wall side borders

Pruning

Pruning group 9

Pests

Generally pest-free

Diseases

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

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