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Vitis californica (California wild grape)

Intermediate
skill rating
2 hours care
per year
9m
Max height
3m
Max spread
10-20 years
To maturity
Low
Toxicity

Plant details

Botanical name

Vitis californica

Other names

California wild grape, California grape, Pacific grape, Northern California grape

Genus

Vitis Vitis

Species

V. californica - V. californica is a vigorous, woody, deciduous vine with large, rounded to heart-shaped, shallowly lobed, mid-green leaves, grey-green when young and turning red and yellow in autumn. Panicles of insignificant flowers in late spring or early summer are followed by small, dull blue, edible fruit ready for harvest in late summer.


Vitis californica is: Deciduous

Habit

Climbing, Twining

Toxicity

Contact may irritate the skin. Fruit is poisonous to dogs.

Flower

Insignificant or absent, Pale-green in Summer

Foliage

Grey-green in Spring; Mid-green in Summer; Red, Yellow in Autumn

How to care

Watch out for

Specific pests

Brown scale , Glasshouse red spider mite , Mealybugs Brown scale , Glasshouse red spider mite , Mealybugs

Downy mildew , Powdery mildew Downy mildew , Powdery mildew

General care

Pruning

Pruning group 11 in midwinter. Train up a support or allow to climb through other plants. Without support it will trail along the ground making a suitable ground cover.

Propagation methods

Seed, Layering, Hardwood cuttings


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Where to grow

Vitis californica (California wild grape) will reach a height of 9m and a spread of 3m after 10-20 years.

Suggested uses

Ground Cover, Flavouring food and drinks, Conservatory, Wallside and trellises, Woodland

Cultivation

Grow in fertile, deep, consistently moist or moist but well-drained soil in full sun. Tolerates partial shade. Does not tolerate waterlogged or boggy conditions. Young growth can be damaged by late spring frosts. Needs regular water during dry periods or if grown in areas with hot, dry summers. Self-fertile.

Soil type

Loamy, Sandy

Soil drainage

Moist but well-drained, Moisture-retentive

Soil pH

Acid, Alkaline, Neutral

Light

Full Sun

Aspect

South, West

Exposure

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

Vitis californica

Other names

California wild grape, California grape, Pacific grape, Northern California grape

Genus

Vitis Vitis

Species

V. californica - V. californica is a vigorous, woody, deciduous vine with large, rounded to heart-shaped, shallowly lobed, mid-green leaves, grey-green when young and turning red and yellow in autumn. Panicles of insignificant flowers in late spring or early summer are followed by small, dull blue, edible fruit ready for harvest in late summer.

Native to

California, Oregon

Foliage

Deciduous

Habit

Climbing, Twining

Toxicity

Contact may irritate the skin. Fruit is poisonous to dogs.


Colour

Flower

Insignificant or absent, Pale-green in Summer

Foliage

Grey-green in Spring; Mid-green in Summer; Red, Yellow in Autumn


How to care

Watch out for

Specific pests

Brown scale , Glasshouse red spider mite , Mealybugs

Specific diseases

Downy mildew , Powdery mildew

General care

Pruning

Pruning group 11 in midwinter. Train up a support or allow to climb through other plants. Without support it will trail along the ground making a suitable ground cover.

Propagation methods

Seed, Layering, Hardwood cuttings


Monthly care advice


Where to grow

Vitis californica (California wild grape) will reach a height of 9m and a spread of 3m after 10-20 years.

Suggested uses

Ground Cover, Flavouring food and drinks, Conservatory, Wallside and trellises, Woodland

Cultivation

Grow in fertile, deep, consistently moist or moist but well-drained soil in full sun. Tolerates partial shade. Does not tolerate waterlogged or boggy conditions. Young growth can be damaged by late spring frosts. Needs regular water during dry periods or if grown in areas with hot, dry summers. Self-fertile.

Soil type

Loamy, Sandy

Soil drainage

Moist but well-drained, Moisture-retentive

Soil pH

Acid, Alkaline, Neutral

Light

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 10, Zone 9, Zone 8, Zone 7

Defra's Risk register #1

Plant name

Vitis californica (California wild 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 #2

Plant name

Vitis californica (California wild 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 #3

Plant name

Vitis californica (California wild 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: 7th March 2019 For more information visit: https://planthealthportal.defra.gov.uk/

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

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