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Lonicera periclymenum 'Graham Thomas' AGM

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© RHS 1998

Characteristics

Plant type

Climber/Wall Shrub

Habit

Climbing

Fragrance

Flower

Resilience

Hardiness

H5 (hardy - cold winter)

Colour

Flower

White and Yellow in Summer

Foliage

Dark Green in Autumn, Spring and Summer

Fruit

Red in Autumn

Size

Ultimate height

4-8 metres

Ultimate spread

1-1.5 metres

Time to ultimate height

5-10 years


Preferred common name

honeysuckle 'Graham Thomas'

Family

Caprifoliaceae


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

'Graham Thomas' is a large twining deciduous climber with oval, dark green leaves whitish beneath and terminal clusters of fragrant white flowers which soon turn to buff-yellow. Berries red. Long flowering season

Synonym(s)

  • Lonicera 'Graham Thomas'

How to grow

Sunlight

  • Full sun
  • Part shade

Aspect

  • South-facing, West-facing, East-facing or North-facing
  • Sheltered or Exposed

Cultivation

Vigorous honeysuckle best in partial shade but tolerates full sun, thrives in any moist but well-drained soil

Soil

  • Moist but well-drained
  • Acid, Alkaline or Neutral
  • Chalk, Clay, Sand or Loam

Propagation

Propagate by layering, hardwood cuttings or semi-hardwood cuttings

Suggested planting locations and garden types

Coastal, Wall-side Borders or 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