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Astelia trinervia (Kauri Grass)

Kauri Grass

Astelia trinervia, commonly known as Kauri Grass, is a tall, NZ native Astelia. It grows as a clump and produces long, narrow, bright green leaves. From autumn through winter, it bears small, red-pink flowers which develop into red berries as it grows to 2 m tall and the same wide. Astelia trinervia is commonly used as an understory plant for larger trees and shrubs, used to line forest paths, or mass planted for a great display.

Astelia trinervia plant.

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Suited to regions:All regions
Plant type:Flaxes
Height:2.00 m
Spread:2.00 m
Flowering time:Autumn, Winter
Tolerances:Shade
Garden uses:Ponds, Pool areas
Garden styles:Backyard, City & Courtyard, Frontyard, Modern, Native
Easy to grow?Yes
Maintenance requirementsLow
Growth rateMedium
Also known asKauri Grass
Sku12862

How to grow Astelia trinervia in NZ

Astelia trinervia is very easy to establish in New Zealand gardens. It grows well in full sun through to partial shade and adapts to a wide range of soils, provided drainage is reasonable. This hardy species tolerates coastal conditions, wind, and frost, making it ideal for exposed sites. To achieve the best performance, plant in well prepared soil enriched with organic matter and water regularly during its first season to promote strong establishment.

Astelia trinervia care tips

Caring for Astelia trinervia is simple and rewarding. Remove any damaged or old leaves to keep the plant looking fresh and tidy. Mulching around the base helps to retain soil moisture and suppress weeds. During long dry periods, occasional deep watering will keep it in peak condition. Astelia trinervia is generally free from pests and diseases, and requires little maintenance once established, making it a great low care plant for NZ gardens.

Astelia trinervia size, spacing, and growth rate

Astelia trinervia typically grows to around 1.5 m tall and 1.5 m wide, forming an attractive clump of bold foliage. It has a moderate growth rate, with plants reaching maturity in a few years under good conditions. For mass plantings or use as a feature, space plants approximately 1 to 1.5 m apart to allow room for their full form. This ensures good coverage and highlights the natural symmetry of the plant as it develops.

Landscaping uses for Astelia trinervia

Astelia trinervia is a versatile landscaping plant that delivers dramatic texture and form. It is perfect for coastal gardens, modern landscapes, and as a feature in native planting schemes. Its strong, upright leaves provide contrast when combined with softer foliage plants, while its metallic tones bring a contemporary edge. Astelia trinervia also works well in mass plantings for ground coverage or as a specimen in containers where its bold presence can be appreciated up close.

Why buy Astelia trinervia from The Plant Company?

When you buy Astelia trinervia from The Plant Company, you are choosing NZ’s most trusted plant nursery. We supply premium quality plants that are nurtured to ensure strong growth and lasting performance in your garden. Our team provides expert advice and reliable nationwide delivery so you can buy with confidence. Astelia trinervia is an outstanding native feature plant, and The Plant Company is dedicated to helping you achieve the best results with it in your landscape.

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