Geranium (Cinereum Group) 'Signal' (Cranesbill 'Signal')

Botanical name

Geranium (Cinereum Group) 'Signal'

Other names

Cranesbill 'Signal', Geranium cinereum 'Signal'

Genus

Geranium Geranium

Variety or Cultivar

'Signal' _ 'Signal' is a low, mound-forming, herbaceous to semi-evergreen perennial with deeply lobed, grey-green leaves and, in late spring and early summer, upward-facing, cup-shaped, bright purple-pink flowers with dark centres.

Foliage

Evergreen

Habit

Compact, Cushion or Mound Forming

---

Colour

Flower

Purple-pink in Spring; Purple-pink in Summer

Foliage

Grey-green in All seasons

---

How to care

Watch out for

Specific pests

Sawflies , Slugs , Snails , Vine weevil

Specific diseases

Powdery mildew

General care

Pruning

Cut back after flowering to encourage the production of fresh leaves and flowers.

Propagation methods

Basal cuttings, Seed

---

Monthly care advice

---

Where to grow

Geranium (Cinereum Group) 'Signal' (Cranesbill 'Signal') will reach a height of 0.2m and a spread of 0.4m after 2-5 years.

Suggested uses

Banks and Slopes, Beds and borders, City, Cottage/Informal, Gravel, Ground Cover, Low Maintenance, Rock, Wildlife

Cultivation

Grow in moist but well-drained to well-drained soil in full sun or partial shade. Requires good drainage. May flower into autumn in cool summer climates.

Soil type

Chalky, Loamy, Sandy

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

Defra's Risk register #1

Plant name

Geranium (Cinereum Group) 'Signal' (Cranesbill 'Signal')

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/