• 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

Diervilla × splendens

bush honeysuckle

bush honeysuckle

© RHS 2002

  • Other common names bush honeysuckle

  • Synonyms Weigela sessifolia splendens

  • Family Caprifoliaceae

  • Genus Diervilla are are suckering deciduous shrubs with simple ovate to lance-shaped leaves and axillary or terminal clusters of tubular yellow flowers in summer

  • Details D. × splendens is a suckering deciduous shrub with terminal clusters of sulphur-yellow flowers 1.5cm in length in summer

Characteristics

  • Foliage Deciduous

  • Habit Suckering

  • 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)

    H5

Colour

Sunlight

  • Full Sun

  • Partial Shade

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

  • Exposure Sheltered or Exposed

Soil

  • Chalk

    Chalk

  • Clay

    Clay

  • Sand

    Sand

  • Loam

    Loam

  • MoistureWell-drained

  • SoilChalk, Clay, Sand, Loam

  • pHAcid, Alkaline, Neutral

Size

  • Ultimate height 1-1.5 metres

  • Ultimate spread 1-1.5 metres

  • Time to ultimate height 5-10 years

How to grow

Cultivation Grows well in woodland setting in sun or partial shade. Suckering habit can help stabilise banks and slopes

Propagation Propagate by softwood cuttings

Suggested planting locations and garden types Banks and Slopes Low Maintenance

How to care

Pruning Pruning group 6

Pests Generally pest free

Diseases Generally disease free

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