Aethionema grandiflorum (Persian stone cress)

Botanical name

Aethionema grandiflorum

Other names

Persian stone cress, Aethionema pulchellum

Genus

Aethionema Aethionema

Species

A. grandiflorum - A. grandiflorum is a compact, rounded, short-lived, evergreen to semi-evergreen, subshrub or woody-based perennial with linear, blue-green leaves and loose racemes of pale to deep rose-pink flowers in late spring and early summer.

Foliage

Evergreen

Habit

Bushy, Compact, Cushion or Mound Forming

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Colour

Flower

Pink in Spring; Pink in Summer

Foliage

Blue-green in All seasons

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How to care

Watch out for

Specific pests

Aphids , Glasshouse red spider mite

Diseases

Generally disease free.

General care

Pruning

Deadhead after flowering.

Propagation methods

Seed, Softwood cuttings

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Monthly care advice

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Where to grow

Aethionema grandiflorum (Persian stone cress) will reach a height of 0.3m and a spread of 0.45m after 5-10 years.

Suggested uses

Banks and Slopes, City, Cottage/Informal, Beds and borders, Garden edging, Gravel, Ground Cover, Containers, Rock

Cultivation

Performs best in well-drained, alkaline soil. Grow in full sun. Tolerates poor, acid soil. Short-lived.

Soil type

Chalky, Loamy, Sandy

Soil drainage

Well-drained

Soil pH

Alkaline, 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

Defra's Risk register #1

Plant name

Aethionema grandiflorum (Persian stone cress)

Common pest name

Cassava whitefly; Cotton whitefly; Sweet potato whitefly; Tobacco whitefly

Scientific pest name

Bemisia tabaci non-European populations

Type

Insect

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)

5

General biosecurity comments

Non-European populations of Bemisia tabaci pose an additional risk to European populations due to the potential for introducing non-European viruses.

Defra's Risk register #2

Plant name

Aethionema grandiflorum (Persian stone cress)

Common pest name

Cassava whitefly; Cotton whitefly; Sweet potato whitefly; Tobacco whitefly

Scientific pest name

Bemisia tabaci European populations

Type

Insect

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)

4

General biosecurity comments

The UK has a protected zone in place for this pest which helps to mitigate the risk of entry and establishment. An EFSA opinion is currently being discussed at the EU Annexes Working Group which recommends further strengthening of the regulation.

Defra's Risk register #3

Plant name

Aethionema grandiflorum (Persian stone cress)

Common pest name

Lance nematode; Nematode; Lance

Scientific pest name

Hoplolaimus spp.

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)

4

General biosecurity comments

Nematode species potentially affecting a wide variety of crops; prohibition of soil likely to mitigate risk substantially; keep under review in light of interceptions or findings should they occur in the EU.

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/