Geranium maderense 'Guernsey Pink' (Giant herb robert 'Guernsey Pink')

Botanical name

Geranium maderense 'Guernsey Pink'

Other names

Giant herb robert 'Guernsey Pink', Madeira Island geranium 'Guernsey Pink', Madeira cranesbill 'Guernsey Pink', Madeira daisy 'Guernsey Pink', Madeiran cranesbill 'Guernsey Pink'

Genus

Geranium Geranium

Variety or Cultivar

'Guernsey Pink' _ 'Guernsey Pink' is a vigorous yet short-lived, evergreen perennial or biennial with rosettes of reddish-brown stems bearing lobed, deeply toothed, bright green leaves and short, erect stems bearing large, domed panicles of flat, pink flowers from late winter to late summer.

Native to

Madeira

Foliage

Evergreen

Habit

Branching, Domed, Erect flower stem

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Colour

Flower

Pink in Spring; Pink in Summer; Pink in Winter

Foliage

Green in Spring; Green in Summer; Green in Autumn; Green in Winter

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How to care

Watch out for

Specific pests

Sawflies , Slugs , Snails , Vine weevil

Specific diseases

Powdery mildew

General care

Pruning

Remove spent flower stems and faded leaves. Leave some seed-heads if self-seeding is desired.

Propagation methods

Basal cuttings, Division, Seed

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Monthly care advice

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Where to grow

Geranium maderense 'Guernsey Pink' (Giant herb robert 'Guernsey Pink') will reach a height of 1.5m and a spread of 1.5m after 2-5 years.

Suggested uses

Architectural, Beds and borders, City, Containers, Cottage/Informal

Cultivation

In frost-free areas, grow in well-drained soil in full sun or partial shade. Under glass, grow in bright filtered light and loam-based compost with added sharp sand.

Soil type

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

Soil drainage

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.

Tender in frost (H3)

USDA zones

Zone 11, Zone 10, Zone 9

Defra's Risk register #1

Plant name

Geranium maderense 'Guernsey Pink' (Giant herb robert 'Guernsey Pink')

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/