Geranium pratense 'Plenum Violaceum' (Meadow cranesbill 'Plenum Violaceum')

Botanical name

Geranium pratense 'Plenum Violaceum'

Other names

Meadow cranesbill 'Plenum Violaceum', Geranium pratense 'Flore Pleno' , Geranium pratense 'Plenum Purpureum'

Genus

Geranium Geranium

Variety or Cultivar

'Plenum Violaceum' _ 'Plenum Violaceum' is an herbaceous perennial with an upright, clump-forming habit. It has green, lobed leaves. In early summer it bears double, violet-blue flowers flushed purple towards the centre.

Foliage

Deciduous

Habit

Clump-forming, Upright

Awards

RHS AGM (Award of Garden Merit)

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Colour

Flower

Blue, Violet, Purple in Summer

Foliage

Green in Spring; Green in Summer

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How to care

Watch out for

Specific pests

Rose leaf-rolling sawfly , Slugs , Snails , Vine weevil

Diseases

May be subject to a virus.

Specific diseases

Downy mildew , Powdery mildew

General care

Pruning

Remove old flowers and leaves to encourage the production of new flowers and leaves.

Propagation methods

Basal cuttings, Division

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Monthly care advice

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Where to grow

Geranium pratense 'Plenum Violaceum' (Meadow cranesbill 'Plenum Violaceum') will reach a height of 0.6m and a spread of 0.5m after 2-5 years.

Suggested uses

Underplanting, Ground Cover, Beds and borders, Cottage/Informal

Cultivation

Plant in any, moderately fertile soil except for waterlogged soils, in full sun or partial shade (full shade is tolerated).

Soil type

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

Soil drainage

Well-drained, Moist but well-drained

Soil pH

Acid, Alkaline, Neutral

Light

Partial 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

Geranium pratense 'Plenum Violaceum' (Meadow cranesbill 'Plenum Violaceum')

Common pest name

Green semi-looper

Scientific pest name

Chrysodeixis eriosoma

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

Polyphagous moth pest which is morphologically identical to a pest already established in the UK in protected environments and being controlled by IPM. Not expected to cause greater impacts than other species of Chrysodeixis in the UK.

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/