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Ozothamnus rosmarinifolius

sea rosemary

Sold by 15 nurseries

  • Other common names sea rosemary

  • Synonyms Helichrysum rosmarinifolium

  • Family Asteraceae

  • 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

  • Details O. rosmarinifolius is 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

  • Plant range SE Australia

Characteristics

  • Foliage Evergreen

  • Habit Bushy

  • Fragrance Flower

  • 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

Sunlight

  • Full Sun

  • Aspect West-facing or South-facing

  • Exposure Sheltered

Soil

  • Sand

    Sand

  • Chalk

    Chalk

  • Loam

    Loam

  • MoistureWell-drained

  • SoilSand, Chalk, Loam

  • pHAcid, Alkaline, Neutral

Size

  • Ultimate height 1.5-2.5 metres

  • Ultimate spread 1-1.5 metres

  • Time to ultimate height 5-10 years

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 Drought Resistant Wall-side Borders Cottage & Informal Garden Mediterranean Climate Plants Coastal Gravel Garden

How to care

Pruning Pruning group 8

Pests Generally pest free

Diseases Generally disease free

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