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Astelia chathamica (Chatham Island Astelia)

Silver Spear, Kakaha

Large Astelia chathamica in a garden with silver flax-like leaves.
Large Astelia chathamica with silver flax-like leaves.
The average plant height is 80 cm
The average plant height is 110 cm

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Suited to regions:All regions
Plant type:Flax and Flax like
Height:1.50 m
Spread:1.50 m
Flowering time:Spring
Tolerances:Coastal, Extended dry periods, Hardy, Wind
Garden uses:Banks, Living areas, Ponds, Pool areas
Garden styles:Architectural, Backyard, City & Courtyard, Coastal, Frontyard, Japanese, Mediterranean, Modern, Native, Riparian
Easy to grow?Yes
Maintenance requirementsLow
Growth rateMedium

Astelia chathamica (Chatham Island Astelia) Details

Astelia chathamica, commonly known as the Silver Spear Astelia, Chatham Island Astelia, or Kakaha, is one of the largest and most recognisable of the Astelia species. This NZ native produces broad and erect, silver-green leaves. The leaves are held with a gentle arch as it grows to 1.5 m tall and the same wide. The foliage is complemented with large spikes of white flowers in spring which are followed by bright orange fruit in summer. Silver Spear Astelia grows best when planted in full sun on a well-drained site, through it will tolerate dry and windy conditions, shade, and frost. Astelia chathamica is an ideal plant for coastal gardens, mass planting either on a bank or as a groundcover, or for adding texture and interest to a mixed planting. Kahaha will provide a striking display whether grown individually or in clusters, and is both robust and easy to grow.

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