Olearia × mollis 'Zennorensis'

RHS Plant Profile

daisy bush 'Zennorensis'

RHS

Synonyms

Olearia × zennorensis
Olearia zennorensis

Shrubs

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A small evergreen shrub with narrowly oblong, strongly-toothed leaves to 10cm long, white-hairy beneath, and rounded clusters of small, white flowers in late spring

Position

Full sun

Soil Types

Chalk, Loam, Sand

Max Height

1.5-2.5 metres

Max Spread

1.5-2.5 metres

Size

Time to Maturity: 5–10 years
Max Spread: 1.5-2.5 metres
Max Height: 1.5-2.5 metres

Growing Conditions

Chalk Loam Sand

Moisture: Moist but well–drained or Well–drained
pH: Acid or Alkaline or Neutral

Position

Full sun

Aspect: South–facing or West–facing
Exposure: 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 outdoors in fertile, well-drained soil in full sun, with shelter from cold, drying winds. Under glass, use a peat-free, loam-based compost, water moderately and apply a balanced liquid fertiliser monthly. Water sparingly in winter

Propagation

Propagate by semi-ripe cuttings in summer, with extra heat from a propagating mat or propagator

Suggested planting locations and garden types

City and courtyard gardens
Coastal
Gravel garden
Cottage and informal garden
Wall side borders
Flower borders and beds

Pruning

Pruning group 8. Trim lightly to maintain a compact habit. If necessary olearia can be pruned back hard and will regenerate from old wood

Pests

Generally pest-free

Diseases

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