Plectranthus argentatus 'Silver Shield' (Silver spurflower 'Silver Shield')

Botanical name

Plectranthus argentatus 'Silver Shield'

Other names

Silver spurflower 'Silver Shield', Silver cuban oregano, Plectranthus 'Silver Shield'

Genus

Plectranthus Plectranthus

Variety or Cultivar

'Silver Shield' _ 'Silver Shield' is a tender, spreading, evergreen sub-shrub often grown as an annual with hairy, silvery stems, silvery-grey, hairy leaves and racemes of pale blue-white flowers in summer.

Foliage

Deciduous

Habit

Erect, Spreading

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Colour

Flower

Pale-blue, White in Summer

Foliage

Silvery-grey in All seasons

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How to care

Watch out for

Pests

Generally pest-free.

Diseases

Generally disease-free.

General care

Propagation methods

Division, Seed, Stem tip cuttings

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Monthly care advice

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Where to grow

Plectranthus argentatus 'Silver Shield' (Silver spurflower 'Silver Shield') will reach a height of 1.2m and a spread of 1m after 2-5 years.

Suggested uses

Beds and borders, City, Coastal, Containers, Cottage/Informal, Greenhouse, Underplanting

Cultivation

Plant in well-drained soil in a partially-shaded, sheltered site. Alternatively, can be grown under glass in full sun with shade from intense sunlight.

Soil type

Loamy, Sandy

Soil drainage

Moist but well-drained, Well-drained

Soil pH

Acid, Alkaline, Neutral

Light

Partial Shade

Aspect

South, East, West

Exposure

Sheltered

UK hardiness Note: We are working to update our ratings. Thanks for your patience.

Indoor unheated (H2), Tender in frost (H3)

USDA zones

Zone 12, Zone 11, Zone 10

Defra's Risk register #1

Plant name

Plectranthus argentatus 'Silver Shield' (Silver spurflower 'Silver Shield')

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/