Ozothamnus rosmarinifolius

RHS Plant Profile

sea rosemary

RHS

Synonyms

Helichrysum rosmarinifolium

Shrubs

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An upright, aromatic, evergreen shrub with small, narrow, dark-green leaves. Small, fragrant, white flowers opening from rose-pink buds are carried in dense, terminal clusters 4cm across in early summer

Position

Full sun

Soil Types

Chalk, Loam, Sand

Max Height

1.5-2.5 metres

Max Spread

1-1.5 metres

Size

Time to Maturity: 5–10 years
Max Spread: 1-1.5 metres
Max Height: 1.5-2.5 metres

Growing Conditions

Chalk Loam Sand

Moisture: Well–drained
pH: Acid or Alkaline or Neutral

Position

Full sun

Aspect: West–facing or South–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
Drought Resistance: Yes

Colour & Scent

Fragrance Flower Foliage

Season	Stem	Flower	Foliage	Fruit
Spring
Summer
Autumn
Winter

Botanical Details

Family: Asteraceae
Native to GB/Ireland: No
Foliage: Evergreen
Habit: Bushy
Genus: Ozothamnus can be evergreen shrubs or perennials, with small, slightly aromatic, linear leaves and tiny white flower-heads which may be solitary or in showy terminal corymbs
Name Status: Correct
Plant Range: SE Australia

How to Grow

Cultivation

Grow in well-drained soil in a sheltered position in full sun

Propagation

Propagate by seed in containers in a cold frame or by semi-ripe cuttings in summer

Suggested planting locations and garden types

Cottage and informal garden
Mediterranean climate plants
Coastal
Gravel garden
Wall side borders

Pruning

Pruning group 8

Pests

Generally pest-free

Diseases

Generally disease-free