OK
In progress indicator

Acaena inermis 'Purpurea' (Purple spineless acaena)

Beginner
skill rating
1 hour care
per year
0.15m
Max height
0.6m
Max spread
2-5 years
To maturity

Plant details

Botanical name

Acaena inermis 'Purpurea'

Other names

Purple spineless acaena, Spineless acaena 'Purpurea', Acaena inermis 'Purple Haze'

Genus

Acaena Acaena

Variety or Cultivar

'Purpurea' _ 'Purpurea' is a mat-forming, evergreen perennial with pinnate leaves divided into ovate, toothed, bronze-purple to reddish-purple leaflets. Spherical, white flower-heads in summer are occasionally followed by bright red burrs.


Acaena inermis 'Purpurea' is: Evergreen

Habit

Compact, Mat Forming

Flower

White in Summer

Foliage

Bronze, Reddish-purple, Flushed purple in All seasons

How to care

Watch out for

General care

Pruning

Remove rooted stems as needed to restrict spread.

Propagation methods

Division, Seed


Sign up for your FREE ACCOUNT today or login to receive detailed monthly care instructions

Where to grow

Acaena inermis 'Purpurea' (Purple spineless acaena) will reach a height of 0.15m and a spread of 0.6m after 2-5 years.

Suggested uses

Banks and Slopes, Gravel, Ground Cover, Containers, Rock, Between paving stones

Cultivation

Grow in any well-drained soil in sun or partial shade, although leaf colour is stronger in sun. Suitable for use between paving stones as tolerates light foot traffic. Listed as a invasive, non-native species in Northern Ireland. Still sold in Northern Ireland, care should be taken with managing the plant.

Soil type

Chalky, Loamy, Sandy

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.

Hardy (H4)

Companion plants

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

Botanical name

Acaena inermis 'Purpurea'

Other names

Purple spineless acaena, Spineless acaena 'Purpurea', Acaena inermis 'Purple Haze'

Genus

Acaena Acaena

Variety or Cultivar

'Purpurea' _ 'Purpurea' is a mat-forming, evergreen perennial with pinnate leaves divided into ovate, toothed, bronze-purple to reddish-purple leaflets. Spherical, white flower-heads in summer are occasionally followed by bright red burrs.

Native to

Garden origin

Foliage

Evergreen

Habit

Compact, Mat Forming


Colour

Flower

White in Summer

Foliage

Bronze, Reddish-purple, Flushed purple in All seasons

General care

Pruning

Remove rooted stems as needed to restrict spread.

Propagation methods

Division, Seed


Monthly care advice


Where to grow

Acaena inermis 'Purpurea' (Purple spineless acaena) will reach a height of 0.15m and a spread of 0.6m after 2-5 years.

Suggested uses

Banks and Slopes, Gravel, Ground Cover, Containers, Rock, Between paving stones

Cultivation

Grow in any well-drained soil in sun or partial shade, although leaf colour is stronger in sun. Suitable for use between paving stones as tolerates light foot traffic. Listed as a invasive, non-native species in Northern Ireland. Still sold in Northern Ireland, care should be taken with managing the plant.

Soil type

Chalky, Loamy, Sandy

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.

Hardy (H4)

USDA zones

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

Defra's Risk register #1

Plant name

Acaena inermis 'Purpurea' (Purple spineless acaena)

Common pest name

grape ground pearl

Scientific pest name

Margarodes vitis

Type

Insect

Current status in UK

Absent

Likelihood to spread to UK (1 is very low - 5 is very high)

2

Impact (1 is very low - 5 is very high)

5

General biosecurity comments

Main pathway; Vitis spp. plants for planting; already prohibited. However; further consideration of other pathways is required.

Defra's Risk register #2

Plant name

Acaena inermis 'Purpurea' (Purple spineless acaena)

Common pest name

Lance nematode; Nematode; Lance

Scientific pest name

Hoplolaimus spp.

Type

Nematode

Current status in UK

Absent

Likelihood to spread to UK (1 is very low - 5 is very high)

2

Impact (1 is very low - 5 is very high)

4

General biosecurity comments

Nematode species potentially affecting a wide variety of crops; prohibition of soil likely to mitigate risk substantially; keep under review in light of interceptions or findings should they occur in the EU.

Defra's Risk register #3

Plant name

Acaena inermis 'Purpurea' (Purple spineless acaena)

Common pest name

Scientific pest name

Orgyia thyellina

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 from Eastern Asia which could be damaging to broadleaf and coniferous species if introduced to the UK; as well as having human health impacts. The main pathway is likely to be on goods (including non-plant material) imported from Eastern Asia and awareness raising with the main industry sectors is recommended.

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/

In order to add a note on this plant, please add this plant to your plant lists.

In progress indicator
Full size image
In progress indicator
Caption

Caption

Cancel and close this form
In progress indicator
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: Partial Shade, Full Sun Tell us...
Aspect: North, South, East, West Tell us...
Exposure: Exposed, Sheltered Tell us...
Hardiness: Hardy (H4) Tell us...

ARTICLES WITH THIS PLANT

The Winton Beauty of Mathematics Garden

Nick Bailey Designs Show Garden at RHS Chelsea Flower Show 2016 to highlight the Beauty of Mathematical Principles in Nature  read more


Report content or feedback to Shoot

To add ? to your lists,
login to your account or subscribe.

Find out more about plant lists here

or Login


To check if this plant is suitable for your garden first login to your account or subscribe.

or Login

In progress indicator
Note

Note

You are adding a note to: ?

Cancel