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Geranium sessiliflorum subsp. novae-zelandiae 'Nigricans' (Dwarf black cranesbill)

Beginner
skill rating
1 hour care
per year
0.1m
Max height
0.15m
Max spread
2-5 years
To maturity

Plant details

Botanical name

Geranium sessiliflorum subsp. novae-zelandiae 'Nigricans'

Other names

Dwarf black cranesbill, Geranium sessiliforum subsp. novae-zelandiae 'Nigrescens', Geranium × oxonianum × sessiliflorum subsp. novae-zelandiae 'Nigricans'

Genus

Geranium Geranium

Variety or Cultivar

'Nigricans' _ 'Nigricans' is a vigorous, rosette-forming, semi-evergreen perennial forming a low, dense mat of rounded, lobed, olive-bronze leaves and, in summer, loose clusters of greyish-white to pale yellow flowers.


Geranium sessiliflorum subsp. novae-zelandiae 'Nigricans' is: Evergreen

Habit

Compact, Mat Forming

Flower

Grey, White, Pale-yellow in Summer

Foliage

Bronze-green in All seasons

How to care

Watch out for

Specific pests

Sawflies , Slugs , Snails , Vine weevil Sawflies , Slugs , Snails , Vine weevil

Powdery mildew Powdery mildew

General care

Pruning

Remove old flowers and leaves to encourage new leaves and a second flush of flowers.

Propagation methods

Basal cuttings, Division


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Where to grow

Geranium sessiliflorum subsp. novae-zelandiae 'Nigricans' (Dwarf black cranesbill) will reach a height of 0.1m and a spread of 0.15m after 2-5 years.

Suggested uses

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

Cultivation

Grow in humus-rich, well- to sharply drained soil in full sun. Self-seeds freely. Will be evergreen in warm climates, herbaceous in areas with very cold winters.

Soil type

Chalky, Loamy, Sandy

Soil drainage

Well-drained

Soil pH

Acid, Alkaline, Neutral

Light

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)

Companion plants

We do not currently have companion plants added for this plant.

Botanical name

Geranium sessiliflorum subsp. novae-zelandiae 'Nigricans'

Other names

Dwarf black cranesbill, Geranium sessiliforum subsp. novae-zelandiae 'Nigrescens', Geranium × oxonianum × sessiliflorum subsp. novae-zelandiae 'Nigricans'

Genus

Geranium Geranium

Variety or Cultivar

'Nigricans' _ 'Nigricans' is a vigorous, rosette-forming, semi-evergreen perennial forming a low, dense mat of rounded, lobed, olive-bronze leaves and, in summer, loose clusters of greyish-white to pale yellow flowers.

Foliage

Evergreen

Habit

Compact, Mat Forming


Colour

Flower

Grey, White, Pale-yellow in Summer

Foliage

Bronze-green in All seasons


How to care

Watch out for

Specific pests

Sawflies , Slugs , Snails , Vine weevil

Specific diseases

Powdery mildew

General care

Pruning

Remove old flowers and leaves to encourage new leaves and a second flush of flowers.

Propagation methods

Basal cuttings, Division


Monthly care advice


Where to grow

Geranium sessiliflorum subsp. novae-zelandiae 'Nigricans' (Dwarf black cranesbill) will reach a height of 0.1m and a spread of 0.15m after 2-5 years.

Suggested uses

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

Cultivation

Grow in humus-rich, well- to sharply drained soil in full sun. Self-seeds freely. Will be evergreen in warm climates, herbaceous in areas with very cold winters.

Soil type

Chalky, Loamy, Sandy

Soil drainage

Well-drained

Soil pH

Acid, Alkaline, Neutral

Light

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

Defra's Risk register #1

Plant name

Geranium sessiliflorum subsp. novae-zelandiae 'Nigricans' (Dwarf black cranesbill)

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: 7th March 2019 For more information visit: https://planthealthportal.defra.gov.uk/

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This plant likes... Garden match
Soil types: Chalky, Loamy, Sandy Tell us...
Soil drainage: Well-drained Tell us...
Soil pH: Acid, Alkaline, Neutral Tell us...
Light: Full Sun Tell us...
Aspect: North, South, East, West Tell us...
Exposure: Exposed, Sheltered Tell us...
Hardiness: Hardy (H4) Tell us...

GARDENS WITH THIS PLANT

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Gerard Rooney
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Robert Kay

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