Weigela coraeensis

RHS Plant Profile
Japanese weigela

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Synonyms

Weigela grandiflora

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Shrubs
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An upright, spreading deciduous shrub to 3.5m high, with shiny, toothed and pointed, oval leaves, with fine hairs on the leaf veins. In early summer, produces clusters of 2-8 flowers from the leaf axils; flowers are bell-shaped and white or pale pink, turning carmine red as they mature

Position

Full sun, Partial shade

Soil Types

Chalk, Clay, Loam, Sand

Max Height

2.5-4 metres

Max Spread

2.5-4 metres

Size

Time to Maturity
5–10 years
Max Spread
2.5-4 metres
Max Height
2.5-4 metres

Growing Conditions

Chalk Clay Loam Sand
Moisture
Moist but well–drained or Well–drained
pH
Acid or Neutral or Alkaline

Position

Full sun Partial shade
Aspect
East–facing or South–facing or West–facing
Exposure
Exposed or Sheltered
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 & Scent

Season Stem Flower Foliage Fruit
Spring
Summer
Autumn
Winter

Botanical Details

Family
Caprifoliaceae
Native to GB/Ireland
No
Foliage
Deciduous
Habit
Bushy
Genus
Weigela are bushy deciduous shrubs with simple, ovate leaves and small clusters of funnel-shaped white, yellow, pink or red flowers on short side shoots in late spring and summer
Name Status
Correct
Plant Range
Japan

How to Grow

Cultivation

Grow in any fertile, well-drained soil in full sun or partial shade.

Propagation

Propagate by softwood cuttings in early summer, semi-hardwood cuttings in midsummer, or hardwood cuttings in autumn and winter

Suggested planting locations and garden types

  • City and courtyard gardens
  • Coastal
  • Cottage and informal garden
  • Flower borders and beds

Pruning

Pruning group 2, after flowering

Pests

May be susceptible to leaf and bud eelworm

Diseases

May be susceptible to honey fungus