Salix helvetica
Swiss willow, Swiss silver willow
Salix Salix
helvetica - S. helvetica is a dwarf, many-branched deciduous shrub with a compact, rounded habit and grey-green lance-shaped leaves which have downy undersides. In early spring, silver-grey catkins open from golden buds.
Salix helvetica is: Deciduous
Rounded, Upright
RHS AGM (Award of Garden Merit)
Silvery-grey in Spring
Grey-green in Spring; Grey-green in Summer
Aphids , Caterpillars , Leaf beetles (willow and poplar) , Sawflies Aphids , Caterpillars , Leaf beetles (willow and poplar) , Sawflies
Anthracnose diseases , Canker , Rust Anthracnose diseases , Canker , Rust
Benefits from a little light pruning after flowering in early spring.
Hardwood cuttings, Seed, Softwood cuttings
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Salix helvetica (Swiss willow) will reach a height of 0.6m and a spread of 0.4m after 20-50 years.
Low Maintenance, Waterside
Plant in moisture-retentive soil in a sunny position.
Clay, Loamy, Sandy
Boggy damp conditions, Moist but well-drained, Moisture-retentive
Acid, Neutral
Full Sun
North, South, East, West
Exposed, Sheltered
Hardy (H4)
We do not currently have companion plants added for this plant.
Salix helvetica
Swiss willow, Swiss silver willow
Salix Salix
helvetica - S. helvetica is a dwarf, many-branched deciduous shrub with a compact, rounded habit and grey-green lance-shaped leaves which have downy undersides. In early spring, silver-grey catkins open from golden buds.
Deciduous
Rounded, Upright
RHS AGM (Award of Garden Merit)
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Silvery-grey in Spring
Grey-green in Spring; Grey-green in Summer
Aphids , Caterpillars , Leaf beetles (willow and poplar) , Sawflies
Anthracnose diseases , Canker , Rust
Benefits from a little light pruning after flowering in early spring.
Hardwood cuttings, Seed, Softwood cuttings
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Salix helvetica (Swiss willow) will reach a height of 0.6m and a spread of 0.4m after 20-50 years.
Low Maintenance, Waterside
Plant in moisture-retentive soil in a sunny position.
Clay, Loamy, Sandy
Boggy damp conditions, Moist but well-drained, Moisture-retentive
Acid, Neutral
Full Sun
North, South, East, West
Exposed, Sheltered
Hardy (H4)
Zone 10, Zone 9, Zone 8, Zone 7, Zone 6, Zone 5, Zone 4, Zone 3, Zone 2
Salix helvetica (Swiss willow)
Agrilus fleischeri
Insect
Absent
4
5
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.
Salix helvetica (Swiss willow)
Namangan longhorn beetle
Xylotrechus namanganensis
Insect
Absent
2
4
Polyphagous pest originating in Asia; some uncertainty regarding risk to UK; further work needed to assess climatic suitability.
Salix helvetica (Swiss willow)
watermark disease of willow; willow vascular wilt; willow watermark disease; willow wilt
Brenneria salicis
Bacterium
Present (Limited)
2
4
Bacterial organism causing watermark disease; which affects willow used for cricket bat production. Established in parts of England; despite long-standing powers for local authorities to take action; which have now been revoked.
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: | Boggy damp conditions, Moist but well-drained, Moisture-retentive | Tell us... |
Soil pH: | Acid, 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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