Euphorbia cyparissias 'Fen's Ruby' (Cypress spurge 'Fen's Ruby')

Botanical name

Euphorbia cyparissias 'Fen's Ruby'

Other names

Cypress spurge 'Fen's Ruby', Euphorbia cyparissias 'Clarice Howard', Euphorbia cyparissias 'Purpurea'

Genus

Euphorbia Euphorbia

Variety or Cultivar

'Fen's Ruby' _ 'Fen's Ruby' is a compact, vigorous, spreading, deciduous perennial with linear, maroon or maroon-flushed, dark grey-green leaves and, from late spring into summer, cymes of bright yellow flowers with prominent, bright yellow-green bracts.

Foliage

Deciduous

Habit

Compact, Spreading

Toxicity

All parts of the plant are highly toxic if ingested. The milky sap may cause irritation to skin and eyes.

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Colour

Flower

Yellow-green, Bright-yellow in Spring; Yellow-green, Bright-yellow in Summer

Foliage

Flushed purple, Grey-green, Maroon in Spring; Maroon, Flushed purple, Grey-green in Summer; Grey-green, Flushed purple, Maroon in Autumn

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How to care

Watch out for

Pests

Generally pest-free.

Specific diseases

Rust

General care

Pruning

Remove spent flower-heads to promote new shoots. Cut back to the base in spring.

Propagation methods

Basal cuttings, Division

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Monthly care advice

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Where to grow

Euphorbia cyparissias 'Fen's Ruby' (Cypress spurge 'Fen's Ruby') will reach a height of 0.5m and a spread of 0.6m after 2-5 years.

Suggested uses

Architectural, City, Flower Arranging, Beds and borders, Ground Cover, Low Maintenance, Underplanting, Woodland

Cultivation

Grow in fertile, moist but well-drained or well-drained soil in sun. Site carefully as spreads quickly.

Soil type

Clay, Loamy, Sandy

Soil drainage

Moist but well-drained, Well-drained

Soil pH

Acid, Alkaline, Neutral

Light

Full Sun

Aspect

South, 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

Euphorbia cyparissias 'Fen's Ruby' (Cypress spurge 'Fen's Ruby')

Common pest name

grape ground pearl

Scientific pest name

Margarodes vitis

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

Main pathway; Vitis spp. plants for planting; already prohibited. However; further consideration of other pathways is required.

Defra's Risk register #2

Plant name

Euphorbia cyparissias 'Fen's Ruby' (Cypress spurge 'Fen's Ruby')

Common pest name

Powdery mildew: cotton; Powdery mildew: eggplant; Powdery mildew: pepper; Powdery mildew: tomato

Scientific pest name

Leveillula taurica

Type

Fungus

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

Believed to be present and no statutory action is being taken. Status needs to be confirmed by survey.

Defra's Risk register #3

Plant name

Euphorbia cyparissias 'Fen's Ruby' (Cypress spurge 'Fen's Ruby')

Common pest name

cotton mealybug

Scientific pest name

Phenacoccus solenopsis

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

Watching brief for potential impact on tomato production in the Mediterranean. Other southern European countries likely to be more at risk. Precautionary action will be taken on findings on planting material to protect glasshouse crops and botanical gardens.

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/