• AGM plants

    AGM plants have been through a rigorous trial and assessment programme. They are:

    • Excellent for ordinary use in appropriate conditions
    • Available to buy
    • Of good constitution
    • Essentially stable in form & colour
    • Reasonably resistant to pests & diseases

Rosmarinus officinalis

rosemary

  • Other common names rosemary
    old man

    rose of the sea
    southernwood

    see more
  • Family Lamiaceae

  • Genus Rosmarinus are evergreen shrubs with narrow, aromatic leaves and 2-lipped blue flowers borne in small clusters in the leaf axils

  • Details R. officinalis is a bushy shrub with a dense, leafy habit, to 2m x 2m but variable in size. Linear dark green leaves 1.5-5cm long have recurved margins and pale, felty undersides. Flowers usually pale violet-blue and white. Flowering starts in spring but is often repeated at differing times of year. Both habit and flower colour can be variable, from prostrate to upright, from deep blue to paler and white tones, pink or purple. Many selections and cultivars are available

  • Plant range Mediterranean

Characteristics

  • Foliage Evergreen

  • Habit Bushy

  • Fragrance Leaf

  • 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 South-facing or West-facing or East-facing

  • Exposure Sheltered or Exposed

Soil

  • Sand

    Sand

  • Clay

    Clay

  • Chalk

    Chalk

  • Loam

    Loam

  • MoistureWell-drained, Moist but well-drained

  • SoilSand, Clay, Chalk, Loam

  • pHAcid, Alkaline, Neutral

Size

  • Ultimate height 1.5-2.5 metres

  • Ultimate spread 1.5-2.5 metres

  • Time to ultimate height 5-10 years

How to grow

Cultivation Easy to grow aromatic, evergreen shrub. Prefers poor, well-drained soil and may be used as a formal or informal low hedge which should be trimmed after flowering

Propagation Propagate by semi-hardwood cuttings

Suggested planting locations and garden types Flower borders and beds Wall-side Borders City & Courtyard Gardens Coastal Cottage & Informal Garden Rock Garden Patio & Container Plants Mediterranean Climate Plants

How to care

Pruning Pruning group 9

Pests Generally pest free

Diseases Generally disease free

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