Salix glauca
arctic grey willow
A deciduous shrub, often to around 1.5m high though it can reach up to 4m in ideal conditions. Young shoots are downy and greenish-brown, maturing to dark reddish brown. Leaves are oval-shaped and covered with fine silvery white hairs. Fluffy catkins appear alongside the leaves in late spring; male catkins have reddish anthers
Size
Ultimate height
2.5–4 metresTime to ultimate height
5–10 yearsUltimate spread
1.5–2.5 metresGrowing conditions
Moisture
Moist but well–drainedpH
Acid, Alkaline, NeutralColour & scent
| Stem | Flower | Foliage | Fruit | |
| Spring | White Green Yellow Red | Green Grey Silver | ||
|---|---|---|---|---|
| Summer | Green Grey Silver | |||
| Autumn | Green Grey Silver Yellow | |||
| Winter |
Position
- Full sun
Aspect
East–facing or South–facing or West–facing
Exposure
Exposed or Sheltered Hardiness
H7Botanical details
- Family
- Salicaceae
- Native to the UK
- 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
How to grow
Cultivation
Grow in any deep, moist but well-drained soil in full sun. Avoid shallow chalk soil. This species is exceptionally cold hardy and will tolerate slightly less moisture in the soil
Propagation
Propagate by softwood cuttings in early summer or hardwood cuttings in winter
Suggested planting locations and garden types
- Coastal
- Cottage and informal garden
- City and courtyard gardens
- Cut flowers
- Flower borders and beds
Pruning
Pruning group 1 or 7
Pests
May be susceptible to aphids, caterpillars, willow leaf beetle, sawflies and willow scale insects
Diseases
May be susceptible to willow anthracnose, honey fungus and rust diseases
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.