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Vinca difformis (Intermediate periwinkle)

Beginner
skill rating
1 hour care
per year
0.5m
Max height
1.5m
Max spread
5-10 years
To maturity

Plant details

Botanical name

Vinca difformis

Other names

Intermediate periwinkle

Genus

Vinca Vinca

Species

V. difformis - V. difformis is a vigorous, prostrate, evergreen subshrub with narrowly lance-shaped, dark green leaves and upright shoots bearing pale blue to white flowers in late winter and early spring.


Vinca difformis is: Evergreen

Habit

Trailing

Awards

RHS AGM (Award of Garden Merit)

Flower

Flushed blue, White in Spring; White, Flushed blue in Winter

Foliage

Dark-green in All seasons

How to care

Watch out for

Specific pests

Aphids Aphids

Rust Rust

General care

Propagation methods

Division, Semi-hardwood cuttings


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Where to grow

Vinca difformis (Intermediate periwinkle) will reach a height of 0.5m and a spread of 1.5m after 5-10 years.

Suggested uses

Banks and Slopes, Cottage/Informal, Beds and borders, Ground Cover, Low Maintenance, Underplanting

Cultivation

Easy to grow in all soils, except for very dry soils. Flowers well in full sun but also very useful for shady areas as well. A vigorous grower that can be invasive.

Soil type

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

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.

Tender in frost (H3)

Companion plants

Botanical name

Vinca difformis

Other names

Intermediate periwinkle

Genus

Vinca Vinca

Species

V. difformis - V. difformis is a vigorous, prostrate, evergreen subshrub with narrowly lance-shaped, dark green leaves and upright shoots bearing pale blue to white flowers in late winter and early spring.

Foliage

Evergreen

Habit

Trailing

Awards

RHS AGM (Award of Garden Merit)


Colour

Flower

Flushed blue, White in Spring; White, Flushed blue in Winter

Foliage

Dark-green in All seasons


How to care

Watch out for

Specific pests

Aphids

Specific diseases

Rust

General care

Propagation methods

Division, Semi-hardwood cuttings


Monthly care advice


Where to grow

Vinca difformis (Intermediate periwinkle) will reach a height of 0.5m and a spread of 1.5m after 5-10 years.

Suggested uses

Banks and Slopes, Cottage/Informal, Beds and borders, Ground Cover, Low Maintenance, Underplanting

Cultivation

Easy to grow in all soils, except for very dry soils. Flowers well in full sun but also very useful for shady areas as well. A vigorous grower that can be invasive.

Soil type

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

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.

Tender in frost (H3)

USDA zones

Zone 9, Zone 8, Zone 7, Zone 6, Zone 5, Zone 4

Defra's Risk register #1

Plant name

Vinca difformis (Intermediate periwinkle)

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. pauca and related strains

Type

Bacterium

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)

3

General biosecurity comments

A bacterial disease with a wide host range causing substantial damage to olive production in the south of Italy. The priority is to prevent further spread from that area through robust EU regulation. This subspecies is unlikely to be able to thrive in the UK; but 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

Vinca difformis (Intermediate periwinkle)

Common pest name

Scientific pest name

Spilostethus pandurus

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)

3

General biosecurity comments

Seed bug unlikely to pose a significant threat to UK plant health.

Defra's Risk register #3

Plant name

Vinca difformis (Intermediate periwinkle)

Common pest name

Scientific pest name

Spilostethus hospes

Type

Insect

Current status in UK

Absent

Likelihood to spread to UK (1 is very low - 5 is very high)

1

Impact (1 is very low - 5 is very high)

3

General biosecurity comments

Seed bug unlikely to pose a significant threat to UK plant health.

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: 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: Tender in frost (H3) Tell us...

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