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Chamaecyparis lawsoniana 'Silver Threads' (Lawson's cypress 'Silver Threads' )

Beginner
skill rating
1 hour care
per year
1.5m
Max height
0.7m
Max spread
10-20 years
To maturity

Plant details

Botanical name

Chamaecyparis lawsoniana 'Silver Threads'

Other names

Port Orford cedar 'Silver Thread', Lawson's cypress 'Silver Threads'

Genus

Chamaecyparis Chamaecyparis

Variety or Cultivar

'Silver Threads' _ 'Silver Threads' is a fairly slow-growing, evergreen shrub of columnar habit, with grey-green to blue-green foliage in short, soft sprays with silver speckles.


Chamaecyparis lawsoniana 'Silver Threads' is: Evergreen

Habit

Narrowly columnar

Foliage

Silvery-grey, Grey-green, Blue-green in All seasons

How to care

Watch out for

Specific pests

Aphids , Juniper scale , Shoot-boring moths Aphids , Juniper scale , Shoot-boring moths

Honey fungus , Phytophthora root diseases Honey fungus , Phytophthora root diseases

General care

Pruning

No pruning required. If formed into a shape, such as a hedge, will need trimming twice a year.


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Where to grow

Chamaecyparis lawsoniana 'Silver Threads' (Lawson's cypress 'Silver Threads' ) will reach a height of 1.5m and a spread of 0.7m after 10-20 years.

Suggested uses

Architectural, City, Hedging/Screens, Low Maintenance, Foliage only

Cultivation

Plant in moist but well-drained soil. Can tolerate chalk soils, but prefers slightly acidic soil.

Soil type

Chalky, Clay, Loamy, Sandy (will tolerate most soil types)

Soil drainage

Moist but well-drained, Well-drained

Soil pH

Acid, Neutral

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

We do not currently have companion plants added for this plant.

Botanical name

Chamaecyparis lawsoniana 'Silver Threads'

Other names

Port Orford cedar 'Silver Thread', Lawson's cypress 'Silver Threads'

Genus

Chamaecyparis Chamaecyparis

Variety or Cultivar

'Silver Threads' _ 'Silver Threads' is a fairly slow-growing, evergreen shrub of columnar habit, with grey-green to blue-green foliage in short, soft sprays with silver speckles.

Foliage

Evergreen

Habit

Narrowly columnar


Colour

Foliage

Silvery-grey, Grey-green, Blue-green in All seasons


How to care

Watch out for

Specific pests

Aphids , Juniper scale , Shoot-boring moths

Specific diseases

Honey fungus , Phytophthora root diseases

General care

Pruning

No pruning required. If formed into a shape, such as a hedge, will need trimming twice a year.


Monthly care advice


Where to grow

Chamaecyparis lawsoniana 'Silver Threads' (Lawson's cypress 'Silver Threads' ) will reach a height of 1.5m and a spread of 0.7m after 10-20 years.

Suggested uses

Architectural, City, Hedging/Screens, Low Maintenance, Foliage only

Cultivation

Plant in moist but well-drained soil. Can tolerate chalk soils, but prefers slightly acidic soil.

Soil type

Chalky, Clay, Loamy, Sandy (will tolerate most soil types)

Soil drainage

Moist but well-drained, Well-drained

Soil pH

Acid, Neutral

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

Defra's Risk register #1

Plant name

Chamaecyparis lawsoniana 'Silver Threads' (Lawson's cypress 'Silver Threads' )

Common pest name

Scientific pest name

Lamprodila festiva

Type

Insect

Current status in UK

Absent

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

5

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

3

General biosecurity comments

Beetle that is native to Europe; whose larvae damage certain ornamental conifer species. Absent in the UK; so industry should source plants carefully and monitor for its presence.

Defra's Risk register #2

Plant name

Chamaecyparis lawsoniana 'Silver Threads' (Lawson's cypress 'Silver Threads' )

Common pest name

Cypress twig; borer

Scientific pest name

Argyresthia cupressella

Type

Insect

Current status in UK

Present (Widespread)

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

3

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

3

General biosecurity comments

Has spread following introduction; little evidence of significant damage. Stakeholder groups may wish to monitor.

Defra's Risk register #3

Plant name

Chamaecyparis lawsoniana 'Silver Threads' (Lawson's cypress 'Silver Threads' )

Common pest name

Stubby-root nematode

Scientific pest name

Trichodorus cedarus

Type

Nematode

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)

3

General biosecurity comments

Polyphagous nematode pest from Asia; occasionally intercepted by the UK. Causes direct feeding damage on plant roots and has the potential to vector viruses.

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: Chalky, Clay, Loamy, Sandy (will tolerate most soil types) Tell us...
Soil drainage: Moist but well-drained, Well-drained Tell us...
Soil pH: Acid, Neutral Tell us...
Aspect: North, South, East, West Tell us...
Exposure: Exposed, Sheltered Tell us...
Hardiness: Hardy (H4) Tell us...

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