• 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

Lonicera × americana (Mill.) K. Koch

American woodbine

American woodbine

© RHS 1997

  • Other common names American woodbine
    evergreen honeysuckle

  • Synonyms Lonicera grata
    Lonicera × grata

  • Family Caprifoliaceae

  • Genus Lonicera can be deciduous and evergreen shrubs, or climbers with twining stems. The tubular or two-lipped flowers, often very fragrant, are followed by red or black berries

  • Details L. × americana is a strong-growing deciduous climber with ovate, dark green leaves and whorls of fragrant tubular flowers 5cm in length, opening white, soon yellow flushed with deep red, and followed by red berries

Characteristics

  • Foliage Deciduous

  • 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)

    H6

Colour

Sunlight

  • Full Sun

  • Partial Shade

  • Aspect South-facing or West-facing or East-facing or North-facing

  • Exposure Sheltered or Exposed

Soil

  • Chalk

    Chalk

  • Clay

    Clay

  • Sand

    Sand

  • Loam

    Loam

  • MoistureMoist but well-drained

  • SoilChalk, Clay, Sand, Loam

  • pHAcid, Alkaline, Neutral

Size

  • Ultimate height 4-8 metres

  • Ultimate spread 1-1.5 metres

  • Time to ultimate height 5-10 years

How to grow

Cultivation Best in partial shade but tolerates full sun, thrives in any moist but well-drained soil

Propagation Propagate by layering, hardwood cuttings or semi-hardwood cuttings

Suggested planting locations and garden types Wall-side Borders Coastal Cottage & Informal Garden

How to care

Pruning Pruning group 11 after flowering

Pests May get aphids and thrips

Diseases May be affected by powdery mildew

Advertise here

Did you find the information you were looking for?

RHS members can get exclusive individual advice from the RHS Gardening Advice team.

Join the RHS now