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Artemisia ludoviciana 'Silver Queen' (Western mugwort 'Silver Queen')

Beginner
skill rating
1 hour care
per year
1m
Max height
1m
Max spread
5-10 years
To maturity

Plant details

Botanical name

Artemisia ludoviciana 'Silver Queen'

Other names

Western mugwort 'Silver Queen', Artemisia palmeri 'Silver Queen', Artemisia purshiana 'Silver Queen', Artemisia 'Silver Queen'

Genus

Artemisia Artemisia

Variety or Cultivar

'Silver Queen' _ 'Silver Queen' is a clump-forming, herbaceous perennial with lance-shaped, downy, greyish-white leaves and, occasionally, plumes of small, insignificant brownish-yellow flowers in late summer to early autumn.


Artemisia ludoviciana 'Silver Queen' is: Deciduous

Fragrance

The foliage has aromatic leaves

Habit

Bushy, Clump-forming

Awards

RHS AGM (Award of Garden Merit)

Flower

Pale-yellow, Insignificant or absent in Summer

Foliage

Green, Silvery-grey, Grey-green in Summer

How to care

Watch out for

Powdery mildew Powdery mildew

General care

Pruning

Cut back in autumn. But in cold areas do not cut until spring. Also pinch out the shoot tips of young plants to encourage bushy growth. Discard old plants that cease to make new growth, they do not renovate well and should be replaced.

Propagation methods

Semi-hardwood cuttings


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Where to grow

Artemisia ludoviciana 'Silver Queen' (Western mugwort 'Silver Queen') will reach a height of 1m and a spread of 1m after 5-10 years.

Suggested uses

Cottage/Informal, Flower Arranging, Beds and borders, Low Maintenance, Foliage only

Cultivation

Plant in in fertile, well-drained soil in full sun. Can suffer in heavy, poorly-drained soil.

Soil type

Chalky, Loamy, Sandy

Soil drainage

Well-drained

Soil pH

Acid, Alkaline, Neutral

Light

Full Sun

Aspect

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

Artemisia ludoviciana 'Silver Queen'

Other names

Western mugwort 'Silver Queen', Artemisia palmeri 'Silver Queen', Artemisia purshiana 'Silver Queen', Artemisia 'Silver Queen'

Genus

Artemisia Artemisia

Variety or Cultivar

'Silver Queen' _ 'Silver Queen' is a clump-forming, herbaceous perennial with lance-shaped, downy, greyish-white leaves and, occasionally, plumes of small, insignificant brownish-yellow flowers in late summer to early autumn.

Foliage

Deciduous

Fragrance

The foliage has aromatic leaves

Habit

Bushy, Clump-forming

Awards

RHS AGM (Award of Garden Merit)


Colour

Flower

Pale-yellow, Insignificant or absent in Summer

Foliage

Green, Silvery-grey, Grey-green in Summer


How to care

Watch out for

Specific diseases

Powdery mildew

General care

Pruning

Cut back in autumn. But in cold areas do not cut until spring. Also pinch out the shoot tips of young plants to encourage bushy growth. Discard old plants that cease to make new growth, they do not renovate well and should be replaced.

Propagation methods

Semi-hardwood cuttings


Monthly care advice


Where to grow

Artemisia ludoviciana 'Silver Queen' (Western mugwort 'Silver Queen') will reach a height of 1m and a spread of 1m after 5-10 years.

Suggested uses

Cottage/Informal, Flower Arranging, Beds and borders, Low Maintenance, Foliage only

Cultivation

Plant in in fertile, well-drained soil in full sun. Can suffer in heavy, poorly-drained soil.

Soil type

Chalky, Loamy, Sandy

Soil drainage

Well-drained

Soil pH

Acid, Alkaline, Neutral

Light

Full Sun

Aspect

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

Artemisia ludoviciana 'Silver Queen' (Western mugwort 'Silver Queen')

Common pest name

Scientific pest name

Phytophthora tentaculata Kröber & Marwitz - All Hosts

Type

Oomycete

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

Polyphagous pathogen present in parts of Europe and beyond.

Defra's Risk register #2

Plant name

Artemisia ludoviciana 'Silver Queen' (Western mugwort 'Silver Queen')

Common pest name

Corn borer; Corn moth; European corn borer; European maize borer; European stalk borer; Maize pyralid

Scientific pest name

Ostrinia nubilalis

Type

Insect

Current status in UK

Present (Limited)

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

Polyphagous boring pest present in the UK since the 1930’s. A maize-affecting race was detected for the first time in 2010. Industry may wish to monitor for its presence and mitigate against impacts.

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, Loamy, Sandy Tell us...
Soil drainage: Well-drained Tell us...
Soil pH: Acid, Alkaline, Neutral Tell us...
Light: Full Sun Tell us...
Aspect: South, East, West Tell us...
Exposure: Exposed, Sheltered Tell us...
Hardiness: Hardy (H4) Tell us...

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