Spiraea japonica 'Albiflora'

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white Japanese spiraea

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white Japanese spiraea visionspictures.com
white Japanese spiraea visionspictures.com

Other common names

Joseph's coat

Synonyms

Spiraea callosa 'Alba'
Spiraea japonica 'Alba'
Spiraea albiflora
Spiraea japonica f. albiflora
Spiraea japonica var. albiflora
Spiraea japonica var. alba

Plants for pollinators
Shrubs
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A bushy, rounded, deciduous shrub to 60cm high, with light green serrated leaves, and clusters of small white flowers with conspicuous stamens in summer

Position

Full sun

Soil Types

Chalk, Clay, Loam, Sand

Max Height

0.5-1 metres

Max Spread

0.5-1 metres

Size

Time to Maturity
2–5 years
Max Spread
0.5-1 metres
Max Height
0.5-1 metres

Growing Conditions

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

Position

Full sun
Aspect
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
Rosaceae
Native to GB/Ireland
No
Foliage
Deciduous
Habit
Bushy
Genus
Spiraea are deciduous shrubs, sometimes suckering, with simple leaves and short racemes, panicles or corymbs of small, 5-petalled white or pink flowers in spring or summer
Name Status
Accepted
Plant Range
Japan

How to Grow

Cultivation

Grow in any fertile, moist but well-drained soil in full sun. Tolerant of all but the most extreme conditions

Propagation

Propagate by softwood cuttings in summer

Suggested planting locations and garden types

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

Pruning

Pruning group 6, flowers on new wood

Pests

Generally pest-free

Diseases

Generally disease-free but may be susceptible to honey fungus