Spiraea japonica
Japanese spiraea
Upright, deciduous shrub about 1.5m tall, with sharply-toothed dark green leaves to 12cm long. Bowl-shaped, pink or white flowers are produced in large flattened heads, to 20cm across, from midsummer onwards
Size
Ultimate height
1–1.5 metresTime to ultimate height
5–10 yearsUltimate spread
1–1.5 metresGrowing conditions
Moisture
Moist but well–drained, Well–drainedpH
Acid, Alkaline, NeutralColour & scent
| Stem | Flower | Foliage | Fruit | |
| Spring | Green | |||
|---|---|---|---|---|
| Summer | Pink White | Green | ||
| Autumn | Green Yellow | |||
| Winter |
Position
- Full sun
- Partial shade
Aspect
South–facing or West–facing or East–facing
Exposure
Exposed or Sheltered Hardiness
H6Botanical details
- Family
- Rosaceae
- Native to the UK
- 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
Correct
How to grow
Cultivation
Grow in moist but well-drained soil in full sun or light shade. Especially suitable for mixed borders
Propagation
Propagate by softwood or semi-ripe cuttings in spring to late summer or hardwood cuttings in winter
Suggested planting locations and garden types
- Cottage and informal garden
- Flower borders and beds
Pruning
Pruning group 6 for spiraea flowering on current years stems, deadhead after flowering. Keep neat and compact by cutting all stems back to within 30cm of ground level
Pests
Generally pest-free
Diseases
Generally disease-free but may be susceptible to Powdery mildews
Get involved
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