Nepeta subsessilis 'Washfield' (Short-stalked catmint 'Washfield')

Botanical name

Nepeta subsessilis 'Washfield'

Other names

Short-stalked catmint 'Washfield', Japanese catmint 'Washfield'

Genus

Nepeta Nepeta

Variety or Cultivar

'Washfield' _ 'Washfield' is a clump-forming, deciduous perennial with upright stems bearing ovate, aromatic, toothed, dark green leaves and whorled, spike-like cymes of two-lipped, violet-blue flowers throughout summer.

Foliage

Deciduous

Fragrance

The leaves have a sweet, aromatic fragrance when crushed.

Habit

Clump-forming, Upright

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Colour

Flower

Blue, Violet in Summer; Violet, Blue in Autumn

Foliage

Dark-green in Spring; Dark-green in Summer; Dark-green in Autumn

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How to care

Watch out for

Specific pests

Leafhoppers

Specific diseases

Powdery mildew

General care

Pruning

Deadhead regularly to prolong flowering. Cut back after flowering.

Propagation methods

Division, Softwood cuttings

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Monthly care advice

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Where to grow

Nepeta subsessilis 'Washfield' (Short-stalked catmint 'Washfield') will reach a height of 0.7m and a spread of 0.4m after 2-5 years.

Suggested uses

Wallside and trellises, Gravel, Cottage/Informal, Coastal, Beds and borders, Wildlife

Cultivation

Grow in moist or moist but well-drained soil in a cool, partially-shaded site.

Soil type

Chalky, Loamy, Sandy

Soil drainage

Moist but well-drained, Moisture-retentive

Soil pH

Acid, Alkaline, Neutral

Light

Partial Shade

Aspect

North, 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

Nepeta subsessilis 'Washfield' (Short-stalked catmint 'Washfield')

Common pest name

tomato thrips

Scientific pest name

Ceratothripoides brunneus

Type

Insect

Current status in UK

Absent

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

3

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

3

General biosecurity comments

Thrips present in Africa; the Caribbean and parts of Asia; frequently intercepted in the UK. Can cause significant damage to tomatoes and other crops in countries where it is present. Europe wide PRA will consider its potential to establish and cause damage.

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