Overview

Aciphylla colensoi is a plant with a rosette-forming perennial habit in the genus Aciphylla, part of the Apiaceae family, with evergreen foliage. It typically grows around 0.9 metres tall. Aciphylla colensoi grows best in full sun, and tolerates loam soils and neutral pH. Its UK hardiness is rated H4. Suggested uses include rock gardens and alpine beds.

About

Aciphylla colensoi is a species of Aciphylla, commonly known as giant speargrass, Spaniard, or by its Māori-language name taramea. Individual plants may be up to 90 cm (35 in) in diameter and up to 1 metre (39 in) high when in flower, and consist of sharp spines, all pointing out from the centre.

Wikipedia contributors, CC BY-SA 4.0Aciphylla colensoi

About the genus

Aciphylla is a genus of about 40 species of herbaceous plants in the family Apiaceae, all but two of them endemic to New Zealand. They range from small cushion plants to tall flower spikes surrounded by rosettes of stiff, pointed leaves, the latter probably adaptations to prevent browsing by moa. Their common name is speargrass or Spaniard.

Wikipedia contributors, "Aciphylla", CC BY-SA 4.0Aciphylla

Growing conditions

Best soil and position for Aciphylla

Sunlight
Full sun
Soil type
Loam
Soil pH
Neutral
Soil moisture
Dry
Aspect
South-facing
Exposure
Sheltered
UK hardiness
H4

Plant details

Aciphylla colensoi size, habit and characteristics

Habit
Rosette-forming perennial
Foliage
Evergreen
Height
0.9 metres
Suggested uses
Rock gardens, alpine beds

Care notes

Pruning and caring for Aciphylla colensoi

Propagation
Seed
Pest resistance
High
Disease resistance
High

Frequently asked questions

Where is the best place to plant Aciphylla colensoi?

Aciphylla colensoi prefers full sun. It suits sheltered positions.

What soil does Aciphylla colensoi need?

Aciphylla colensoi grows best in loam soil. It prefers neutral soil. Aim for soil that stays dry.

How big does Aciphylla colensoi grow?

Aciphylla colensoi reaches a height of 0.9 metres.

Is Aciphylla colensoi hardy in the UK?

Aciphylla colensoi has an RHS hardiness rating of H4, meaning it is hardy through an average UK winter, tolerating -10 to -5°C.

How do I propagate Aciphylla colensoi?

Seed.