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Chamaecyparis lawsoniana 'Pygmaea Argentea' (Lawson's cypress 'Pygmaea Argentea')

Beginner
skill rating
1 hour care
per year
2.5m
Max height
1m
Max spread
20-50 years
To maturity
Low
Toxicity

Plant details

Botanical name

Chamaecyparis lawsoniana 'Pygmaea Argentea'

Other names

Lawson's cypress 'Pygmaea Argentea', Chamaecyparis lawsoniana 'Backhousiana'

Genus

Chamaecyparis Chamaecyparis

Variety or Cultivar

'Pygmaea Argentea' _ 'Pygmaea Argentea' is a slow-growing dwarf coniferous shrub with a rounded habit. Its foliage is dark blue-green variegated with white at the tips, especially in spring.


Chamaecyparis lawsoniana 'Pygmaea Argentea' is: Evergreen

Habit

Dense, Rounded

Toxicity

Contact with foliage may irritate skin.

Awards

RHS AGM (Award of Garden Merit)

Foliage

Blue-green, White 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, unless shaped, in which case it requires two trims per year.

Propagation methods

Grafting, Semi-hardwood cuttings


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Where to grow

Chamaecyparis lawsoniana 'Pygmaea Argentea' (Lawson's cypress 'Pygmaea Argentea') will reach a height of 2.5m and a spread of 1m after 20-50 years.

Suggested uses

Architectural, Containers, Foliage only, Gravel, Hedging/Screens, Low Maintenance, Rock

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

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

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

Botanical name

Chamaecyparis lawsoniana 'Pygmaea Argentea'

Other names

Lawson's cypress 'Pygmaea Argentea', Chamaecyparis lawsoniana 'Backhousiana'

Genus

Chamaecyparis Chamaecyparis

Variety or Cultivar

'Pygmaea Argentea' _ 'Pygmaea Argentea' is a slow-growing dwarf coniferous shrub with a rounded habit. Its foliage is dark blue-green variegated with white at the tips, especially in spring.

Foliage

Evergreen

Habit

Dense, Rounded

Toxicity

Contact with foliage may irritate skin.

Awards

RHS AGM (Award of Garden Merit)


Colour

Foliage

Blue-green, White 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, unless shaped, in which case it requires two trims per year.

Propagation methods

Grafting, Semi-hardwood cuttings


Monthly care advice


Where to grow

Chamaecyparis lawsoniana 'Pygmaea Argentea' (Lawson's cypress 'Pygmaea Argentea') will reach a height of 2.5m and a spread of 1m after 20-50 years.

Suggested uses

Architectural, Containers, Foliage only, Gravel, Hedging/Screens, Low Maintenance, Rock

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

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

Defra's Risk register #1

Plant name

Chamaecyparis lawsoniana 'Pygmaea Argentea' (Lawson's cypress 'Pygmaea Argentea')

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 'Pygmaea Argentea' (Lawson's cypress 'Pygmaea Argentea')

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 'Pygmaea Argentea' (Lawson's cypress 'Pygmaea Argentea')

Common pest name

Pine wilt disease; Pine wood nematode

Scientific pest name

Bursaphelenchus xylophilus

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

Nematode pest has caused extensive damage in Portugal and areas outside of Europe; EU project assessing risk of pest to northern Europe. Subject to EU emergency measures. Awareness raising needed wrt risk of entry via vectors that have been recently intercepted (May; June; 2013).

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...
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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