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Euphorbia 'Whistleberry Garnet' (Spurge 'Whistleberry Garnet')

Beginner
skill rating
1 hour care
per year
1m
Max height
0.5m
Max spread
2-5 years
To maturity
Low
Toxicity

Plant details

Botanical name

Euphorbia 'Whistleberry Garnet'

Other names

Spurge 'Whistleberry Garnet'

Genus

Euphorbia Euphorbia

Variety or Cultivar

'Whistleberry Garnet' _ 'Whistleberry Garnet' is a compact, evergreen perennial with whorls of linear, dark green leaves, red buds in winter, burgundy shoots emerging in spring and large, bright yellow flowers in summer.


Euphorbia 'Whistleberry Garnet' is: Evergreen

Habit

Compact, Upright

Toxicity

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

Flower

Bright-yellow, Yellow-green in Spring

Foliage

Dark-green in All seasons

How to care

Watch out for

Specific pests

Aphids Aphids

Grey mould Grey mould

General care

Pruning

Remove spend flowerheads in spring to encourage new shoots.

Propagation methods

Division


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Where to grow

Euphorbia 'Whistleberry Garnet' (Spurge 'Whistleberry Garnet') will reach a height of 1m and a spread of 0.5m after 2-5 years.

Suggested uses

Beds and borders, City, Cottage/Informal, Gravel, Low Maintenance, Mediterranean, Underplanting

Cultivation

This plant will tolerate moist soils and is happy in sun or shade.

Soil type

Chalky, Loamy, Sandy

Soil drainage

Moist but well-drained, Well-drained

Soil pH

Acid, Alkaline, Neutral

Light

Partial Shade, Full Shade, 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)

Companion plants

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

Botanical name

Euphorbia 'Whistleberry Garnet'

Other names

Spurge 'Whistleberry Garnet'

Genus

Euphorbia Euphorbia

Variety or Cultivar

'Whistleberry Garnet' _ 'Whistleberry Garnet' is a compact, evergreen perennial with whorls of linear, dark green leaves, red buds in winter, burgundy shoots emerging in spring and large, bright yellow flowers in summer.

Foliage

Evergreen

Habit

Compact, Upright

Toxicity

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


Colour

Flower

Bright-yellow, Yellow-green in Spring

Foliage

Dark-green in All seasons


How to care

Watch out for

Specific pests

Aphids

Specific diseases

Grey mould

General care

Pruning

Remove spend flowerheads in spring to encourage new shoots.

Propagation methods

Division


Monthly care advice


Where to grow

Euphorbia 'Whistleberry Garnet' (Spurge 'Whistleberry Garnet') will reach a height of 1m and a spread of 0.5m after 2-5 years.

Suggested uses

Beds and borders, City, Cottage/Informal, Gravel, Low Maintenance, Mediterranean, Underplanting

Cultivation

This plant will tolerate moist soils and is happy in sun or shade.

Soil type

Chalky, Loamy, Sandy

Soil drainage

Moist but well-drained, Well-drained

Soil pH

Acid, Alkaline, Neutral

Light

Partial Shade, Full Shade, 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

Defra's Risk register #1

Plant name

Euphorbia 'Whistleberry Garnet' (Spurge 'Whistleberry Garnet')

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 'Whistleberry Garnet' (Spurge 'Whistleberry Garnet')

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.

Defra's Risk register #3

Plant name

Euphorbia 'Whistleberry Garnet' (Spurge 'Whistleberry Garnet')

Common pest name

pink wax scale; red was scale; ruby wax scale

Scientific pest name

Ceroplastes rubens

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

Based on its biology and low potential impact continued action on this pest in the UK would not be considered appropriate. It is likely to be of more concern to southern Member States of the EU; as it is an economic pest of citrus.

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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Euphorbia Whistleberry Garnet flower

Euphorbia Whistleberry Garnet

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This plant likes... Garden match
Soil types: Chalky, Loamy, Sandy Tell us...
Soil drainage: Moist but well-drained, Well-drained Tell us...
Soil pH: Acid, Alkaline, Neutral Tell us...
Light: Partial Shade, Full Shade, Full Sun Tell us...
Aspect: North, South, East, West Tell us...
Exposure: Exposed, Sheltered Tell us...
Hardiness: Hardy (H4) Tell us...

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Euphorbia ,Whistleberry Garnet,

Hi - can you please advise me why the Euphorbia Whistleberry Garnet plants in my client's garden look very sick. What should I do? RegardsSue Wood read more

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