Geranium pyrenaicum 'Bill Wallis' (Mountain cranesbill 'Bill Wallis')

Botanical name

Geranium pyrenaicum 'Bill Wallis'

Other names

Mountain cranesbill 'Bill Wallis', Hedgerow cranesbill 'Bill Wallis', Mountain geranium 'Bill Wallis'

Genus

Geranium Geranium

Variety or Cultivar

'Bill Wallis' _ 'Bill Wallis' is a clump-forming, hairy, evergreen to semi-evergreen perennial with rounded, lobed or scalloped, mid-green leaves and loose cymes of star-shaped, purple flowers from late spring into autumn.

Foliage

Evergreen

Habit

Clump-forming

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Colour

Flower

Purple in Spring; Purple in Summer; Purple in Autumn

Foliage

Mid-green in All seasons

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How to care

Watch out for

Specific pests

Capsid bug , Rose leaf-rolling sawfly , Vine weevil

Specific diseases

Powdery mildew

General care

Pruning

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

Propagation

Comes true from seed.

Propagation methods

Basal cuttings, Division, Seed

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Monthly care advice

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Where to grow

Geranium pyrenaicum 'Bill Wallis' (Mountain cranesbill 'Bill Wallis') will reach a height of 0.6m and a spread of 0.4m after 2-5 years.

Suggested uses

Rock, Ground Cover, Gravel, Cottage/Informal, Cake decoration, Beds and borders, Underplanting

Cultivation

Best planted in moderately fertile, well-drained soil (apart from waterlogged) in either full sun or partial shade. Tolerates shade.

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 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 11, Zone 10, Zone 9, Zone 8, Zone 7, Zone 6, Zone 5

Defra's Risk register #1

Plant name

Geranium pyrenaicum 'Bill Wallis' (Mountain cranesbill 'Bill Wallis')

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/