Vitis vinifera 'Purpurea' (Tenturier grape)

Botanical name

Vitis vinifera 'Purpurea'

Other names

Tenturier grape, Grape vine 'Purpurea'

Genus

Vitis Vitis

Variety or Cultivar

'Purpurea' _ 'Purpurea' is a fast-growing, large climber with lobed purple leaves in summer, turning crimson-tinted in autumn, and insignificant green flowers followed by deep purple grapes.

Foliage

Deciduous

Habit

Climbing, Twining

Toxicity

Contact may irritate the skin.

Awards

RHS AGM (Award of Garden Merit)

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Colour

Flower

Green in Summer

Foliage

Green in Summer; Orange, Dark-red, Red in Autumn

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How to care

Watch out for

Specific pests

Brown scale , Glasshouse red spider mite , Mealybugs

Specific diseases

Powdery mildew

General care

Pruning

Shorten young shoots in summer to keep vigorous growth in check.

Propagation methods

Hardwood cuttings, Layering

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Monthly care advice

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Where to grow

Vitis vinifera 'Purpurea' (Tenturier grape) will reach a height of 8m and a spread of 2.5m after 5-10 years.

Suggested uses

Sub-Tropical, Wallside and trellises

Cultivation

Plant in sun or partial shade in well-drained soil.

Soil type

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

Soil drainage

Well-drained

Soil pH

Alkaline, Neutral

Light

Partial Shade, Full Sun

Aspect

South, West

Exposure

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

Vitis vinifera 'Purpurea' (Tenturier grape)

Common pest name

Citrus little leaf; Little leaf of citrus; Sour orange stem pitting; Stem pitting of sour orange; Xyloporosis of citrus

Scientific pest name

Hop stunt viroid

Type

Virus or Viroid

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)

4

General biosecurity comments

Pest of hops present in America and parts of Europe. PHPS provides good assurance of disease freedom; but EU regulation to be pursued to enhance protection in the longer term.

Defra's Risk register #2

Plant name

Vitis vinifera 'Purpurea' (Tenturier grape)

Common pest name

Alfalfa dwarf; Anaheim disease; California vine disease; Dwarf disease of alfalfa; Dwarf disease of lucerne; Leaf scald of oleander; Leaf scald of plum; Leaf scorch; Phony disease of peach; Pierce's disease of grapevine; Variegated chlorosis of citrus

Scientific pest name

Xylella fastidiosa subsp. multiplex

Type

Bacterium

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)

4

General biosecurity comments

A bacterial disease with a wide host range detected in Corsica. Although EU regulated; there remains some concern about the risk of introduction. This subspecies is known to be able to thrive in cooler climates. Should an outbreak occur; there would be a need for eradication action which would result in environmental and social impacts.

Defra's Risk register #3

Plant name

Vitis vinifera 'Purpurea' (Tenturier grape)

Common pest name

Alfalfa dwarf; Anaheim disease; California vine disease; Dwarf disease of alfalfa; Dwarf disease of lucerne; Leaf scald of oleander; Leaf scald of plum; Leaf scorch; Phony disease of peach; Pierce's disease of grapevine; Variegated chlorosis of citrus

Scientific pest name

Xylella fastidiosa (all other strains and subspecies)

Type

Bacterium

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)

4

General biosecurity comments

A bacterial disease with a wide host range and many sub-species and strains; including those that could thrive in cooler climates; showing different levels of pathogenicity. Although EU regulated; there is some concern about the risk of introduction. Should an outbreak occur; there would be a need for eradication action which would result in environmental and social impacts.

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/