Salix koriyanagi
Japanese basket osier
An osier-like erect shrub, up to 3m high, with slender, whippy, purple-reddish stems, slender leaves, up to 10cm long, which have an orange-red flush in spring and then become dark bright green above and blue-green beneath, and slender catkins, the males with orange anthers, in spring
Size
Ultimate height
2.5–4 metresTime to ultimate height
10–20 yearsUltimate spread
1–1.5 metresGrowing conditions
Moisture
Moist but well–drained, Poorly–drainedpH
Acid, Alkaline, NeutralColour & scent
| Stem | Flower | Foliage | Fruit | |
| Spring | Purple Red | Orange | Orange Red Green | |
|---|---|---|---|---|
| Summer | Purple Red | Green | ||
| Autumn | Purple Red | Green | ||
| Winter | Purple Red |
Position
- Full sun
Aspect
South–facing or North–facing or West–facing or East–facing
Exposure
Exposed or Sheltered Hardiness
H5Botanical details
- Family
- Salicaceae
- Native to GB / Ireland
- No
- Foliage
- Deciduous
- Habit
- Bushy
- Genus
Salix are deciduous shrubs and trees of diverse habit, with simple leaves and tiny flowers in catkins, male and female usually on separate plants. Some are valued for their brightly coloured winter shoots, others for their foliage or showy male catkins
- Name status
Correct
- Plant range
- Japan, Korea
How to grow
Cultivation
Grow in full sun in moist or wet soil
Propagation
Propagate by softwood cuttings in early summer or hardwood cuttings in winter
Suggested planting locations and garden types
- Cottage and informal garden
- Wildlife gardens
- Hedging and screens
Pruning
Pests
May be susceptible to aphids, caterpillars, leaf beetles, sawflies, willow scale
Diseases
May be susceptible to willow anthracnose, scab, canker, honey fungus and rust
Get involved
The Royal Horticultural Society is the UK’s leading gardening charity. We aim to enrich everyone’s life through plants, and make the UK a greener and more beautiful place.