• 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

Jasminum polyanthum

many-flowered jasmine

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
  • Other common names many-flowered jasmine

  • Synonyms Jasminum blinii

  • Family Oleaceae

  • Genus Jasminum are evergreen or deciduous shrubs, many climbing by twining stems bearing usually pinnate leaves, and star-shaped white, pink or yellow flowers, which are sometimes very fragrant. Fruit a black berry

  • Details J. polyanthum is a strong-growing evergreen twiner to 3m or more, with dark green, pinnate leaves and axillary panicles of very fragrant, long-tubed white flowers 2cm across, opening from pink buds

  • Plant range SW China

Characteristics

  • Foliage Evergreen

  • Habit Climbing

  • 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)

    H2

Colour

Sunlight

  • Full Sun

  • Partial Shade

  • Aspect South-facing

  • Exposure Sheltered

Soil

  • Chalk

    Loam

  • Chalk

    Chalk

  • Chalk

    Sand

  • MoistureWell-drained

  • SoilLoam, Chalk, Sand

  • pHAcid, Alkaline, Neutral

Size

  • Ultimate height 2.5-4 metres

  • Ultimate spread 1-1.5 metres

  • Time to ultimate height 5-10 years

How to grow

Cultivation Grow outdoors in well-drained soil in a sheltered, frost-free area. Under glass grow in loam-based compost in bright filtered light

Propagation Propagate by semi-hardwood cuttings or by layering in autumn

Suggested planting locations and garden types Low Maintenance Wall-side Borders Patio & Container Plants City & Courtyard Gardens

How to care

Pruning Requires little pruning other than to thin overcrowded growth after flowering

Pests Can get aphids, scale insects and mealybugs under glass

Diseases Generally disease free

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