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Arabis blepharophylla (Rock cress)

Beginner
skill rating
1 hour care
per year
0.3m
Max height
0.4m
Max spread
2-5 years
To maturity

Plant details

Botanical name

Arabis blepharophylla

Other names

Rock cress

Genus

Arabis Arabis

Species

A. blepharophylla - A. blepharophylla is a small, mounding, herbaceous perennial with mid-green, basal leaves and, in spring, bears small racemes of purple-pink flowers with white centres, on wiry stems.


Arabis blepharophylla is: Evergreen

Fragrance

Flowers are fragrant.

Habit

Erect flower stem, Rosette

Flower

White, Purplish-pink in Spring

Foliage

Mid-green in All seasons

How to care

Watch out for

Specific pests

Aphids , Gall midges Aphids , Gall midges

Downy mildew , White blister Downy mildew , White blister

General care

Propagation

For softwood cuttings cut after flower finished in summer. Sow seed at 70 degrees F.

Propagation methods

Division, Seed, Softwood cuttings


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Where to grow

Arabis blepharophylla (Rock cress) will reach a height of 0.3m and a spread of 0.4m after 2-5 years.

Suggested uses

Garden edging, Gravel, Ground Cover, Rock, Wildflower

Cultivation

Plant in poor, free-draining, sandy soils in sun.

Soil type

Chalky, Clay, Loamy, Sandy (will tolerate most soil types)

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

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

Botanical name

Arabis blepharophylla

Other names

Rock cress

Genus

Arabis Arabis

Species

A. blepharophylla - A. blepharophylla is a small, mounding, herbaceous perennial with mid-green, basal leaves and, in spring, bears small racemes of purple-pink flowers with white centres, on wiry stems.

Foliage

Evergreen

Fragrance

Flowers are fragrant.

Habit

Erect flower stem, Rosette


Colour

Flower

White, Purplish-pink in Spring

Foliage

Mid-green in All seasons


How to care

Watch out for

Specific pests

Aphids , Gall midges

Specific diseases

Downy mildew , White blister

General care

Propagation

For softwood cuttings cut after flower finished in summer. Sow seed at 70 degrees F.

Propagation methods

Division, Seed, Softwood cuttings


Monthly care advice


Where to grow

Arabis blepharophylla (Rock cress) will reach a height of 0.3m and a spread of 0.4m after 2-5 years.

Suggested uses

Garden edging, Gravel, Ground Cover, Rock, Wildflower

Cultivation

Plant in poor, free-draining, sandy soils in sun.

Soil type

Chalky, Clay, Loamy, Sandy (will tolerate most soil types)

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 7, Zone 6, Zone 5, Zone 4, Zone 3

Defra's Risk register #1

Plant name

Arabis blepharophylla (Rock 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

Arabis blepharophylla (Rock 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

Arabis blepharophylla (Rock 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: 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: 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...

GARDENS WITH THIS PLANT

My Garden
My Garden
Norma Thain

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