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Salix gracilistyla 'Mount Aso' (Rosegold pussy willow 'Mount Aso')

Beginner
skill rating
1 hour care
per year
4.5m
Max height
3m
Max spread
20-50 years
To maturity

Plant details

Botanical name

Salix gracilistyla 'Mount Aso'

Other names

Rosegold pussy willow 'Mount Aso', Salix gracilistyla 'Mt. Aso', Salix gracilistyla 'Mt. Asama', Salix chaenomeloides 'Mount Aso', Salix chaenomeloides 'Mt Aso', Japanese pink pussy willow 'Mt Aso', Red-flowered pussy willow 'Mt. Aso'

Genus

Salix Salix

Variety or Cultivar

'Mount Aso' _ 'Mount Aso' is a multi-stemmed, deciduous, male shrub with upright, wide-spreading stems, silky-hairy when young, and oblong, blue to grey-green leaves, white-felted beneath. Red, silky catkins in late winter or early spring turn grey then yellow with age.


Salix gracilistyla 'Mount Aso' is: Deciduous

Habit

Upright, Spreading

Flower

Yellow, Red, Grey in Spring; Red in Winter

Foliage

Blue-green in Spring; Blue-green in Summer; Blue-green in Autumn

How to care

Watch out for

Specific pests

Aphids , Caterpillars , Leaf beetles (willow and poplar) , Sawflies Aphids , Caterpillars , Leaf beetles (willow and poplar) , Sawflies

Anthracnose diseases , Rust Anthracnose diseases , Rust

General care

Pruning

Can be pollarded every 3-4 years.

Propagation methods

Hardwood cuttings, Softwood cuttings


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Where to grow

Salix gracilistyla 'Mount Aso' (Rosegold pussy willow 'Mount Aso') will reach a height of 4.5m and a spread of 3m after 20-50 years.

Suggested uses

Coastal, Hedging/Screens, Low Maintenance, Wildlife

Cultivation

Plant in moist but well-drained or well-drained soil in full sun. Dislikes shallow chalk soil.

Soil type

Clay, Loamy, Sandy

Soil drainage

Moist but well-drained, Moisture-retentive

Soil pH

Acid, Alkaline, Neutral

Light

Full Sun

Aspect

North, South, East, West

Exposure

Exposed, Sheltered

UK hardiness Note: We are working to update our ratings. Thanks for your patience.

Hardy (H4)

Companion plants

Botanical name

Salix gracilistyla 'Mount Aso'

Other names

Rosegold pussy willow 'Mount Aso', Salix gracilistyla 'Mt. Aso', Salix gracilistyla 'Mt. Asama', Salix chaenomeloides 'Mount Aso', Salix chaenomeloides 'Mt Aso', Japanese pink pussy willow 'Mt Aso', Red-flowered pussy willow 'Mt. Aso'

Genus

Salix Salix

Variety or Cultivar

'Mount Aso' _ 'Mount Aso' is a multi-stemmed, deciduous, male shrub with upright, wide-spreading stems, silky-hairy when young, and oblong, blue to grey-green leaves, white-felted beneath. Red, silky catkins in late winter or early spring turn grey then yellow with age.

Foliage

Deciduous

Habit

Upright, Spreading


Colour

Flower

Yellow, Red, Grey in Spring; Red in Winter

Foliage

Blue-green in Spring; Blue-green in Summer; Blue-green in Autumn


How to care

Watch out for

Specific pests

Aphids , Caterpillars , Leaf beetles (willow and poplar) , Sawflies

Specific diseases

Anthracnose diseases , Rust

General care

Pruning

Can be pollarded every 3-4 years.

Propagation methods

Hardwood cuttings, Softwood cuttings


Monthly care advice


Where to grow

Salix gracilistyla 'Mount Aso' (Rosegold pussy willow 'Mount Aso') will reach a height of 4.5m and a spread of 3m after 20-50 years.

Suggested uses

Coastal, Hedging/Screens, Low Maintenance, Wildlife

Cultivation

Plant in moist but well-drained or well-drained soil in full sun. Dislikes shallow chalk soil.

Soil type

Clay, Loamy, Sandy

Soil drainage

Moist but well-drained, Moisture-retentive

Soil pH

Acid, Alkaline, Neutral

Light

Full Sun

Aspect

North, South, East, West

Exposure

Exposed, Sheltered

UK hardiness Note: We are working to update our ratings. Thanks for your patience.

Hardy (H4)

USDA zones

Zone 8, Zone 7, Zone 6, Zone 5, Zone 4

Defra's Risk register #1

Plant name

Salix gracilistyla 'Mount Aso' (Rosegold pussy willow 'Mount Aso')

Common pest name

Scientific pest name

Agrilus fleischeri

Type

Insect

Current status in UK

Absent

Likelihood to spread to UK (1 is very low - 5 is very high)

4

Impact (1 is very low - 5 is very high)

5

General biosecurity comments

Pest of poplar; native to East Asia. Likely to be damaging if introduced to the UK. Protecting against the risk of entry via wood packaging material and other means remains a priority. A Europe-wide assessment would be helpful; to consider strengthened regulation.

Defra's Risk register #2

Plant name

Salix gracilistyla 'Mount Aso' (Rosegold pussy willow 'Mount Aso')

Common pest name

Namangan longhorn beetle

Scientific pest name

Xylotrechus namanganensis

Type

Insect

Current status in UK

Absent

Likelihood to spread to UK (1 is very low - 5 is very high)

2

Impact (1 is very low - 5 is very high)

4

General biosecurity comments

Polyphagous pest originating in Asia; some uncertainty regarding risk to UK; further work needed to assess climatic suitability.

Defra's Risk register #3

Plant name

Salix gracilistyla 'Mount Aso' (Rosegold pussy willow 'Mount Aso')

Common pest name

Scientific pest name

Hylesia nigricans

Type

Insect

Current status in UK

Absent

Likelihood to spread to UK (1 is very low - 5 is very high)

2

Impact (1 is very low - 5 is very high)

4

General biosecurity comments

South American moth which could be damaging to broadleaf species if introduced to the UK; as well as having human health impacts. The main pathway is likely to be goods (including non-plant material) imported from South America and awareness raising with the main industry sectors is recommended.

About this section

Our plants are under greater threat than ever before. There is increasing movement of plants and other material traded from an increasing variety of sources. This increases the chances of exotic pests arriving with imported goods and travellers, as well as by natural means. Shoot is working with Defra to help members to do their part in preventing the introduction and spread of invasive risks.

Traveling or importing plants? Please read "Don't risk it" advice here

Suspected outbreak? Click here for contact details to report to the relevant authority.

Date updated: 7th March 2019 For more information visit: https://planthealthportal.defra.gov.uk/

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This plant likes... Garden match
Soil types: Clay, Loamy, Sandy Tell us...
Soil drainage: Moist but well-drained, Moisture-retentive Tell us...
Soil pH: Acid, Alkaline, Neutral Tell us...
Light: Full Sun Tell us...
Aspect: North, South, East, West Tell us...
Exposure: Exposed, Sheltered Tell us...
Hardiness: Hardy (H4) Tell us...

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