Acaena inermis 'Purpurea'
Acaena inermis 'Purpurea'

Acaena inermis 'Purpurea'

Purple New Zealand Burr



5 - 10 cm

Flower colour


Flowering time


Foliage colour



sun - partial shade


well drained, gritty


acid - neutral - alkaline


moderately hardy

Plant range

New Zealand

The genus Acaena belongs to the family Rosaceae. It's native to the southern hemisphere, mainly New-Zealand, Australia and S-America. The species are low growing herbaceous plants or subshrubs with tiny leaves resembling rose leaves. Many are beautiful groundcovers with colorful foliage e.g. bluegreen or bronze.


Division in spring.

Seed – needs cold stratification, best sown in September - November.

Seed just covered and stored for 2-4 weeks at 20°C (68°F) and then it‘s moved outside until germination. Germination can be slow, seed may germinate a year later, so it‘s important not to throw it away prematurely.

A procumbent half-shrub that forms a mat of small, purple leaves that resemble miniature rose foliage. It grows best in full sun, but can tolerate partial shade. The soil needs to be well drained, preferably mixed with pumice or fine gravel, because it is sensitive to wet soil, especially during winter. The flowers are tiny in globe-shaped clusters, cream coloured. It rarely flowers and is grown for the foliage colour.

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