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Libertia cranwelliae

Cranwell's Iris

Libertia cranwelliae is a beautiful New Zealand native perennial valued for its upright, sword like foliage and delicate clusters of white flowers. This hardy species thrives in a range of garden conditions and provides year round structure with seasonal bursts of colour. Its tidy, clump forming habit makes it ideal for borders, native gardens, and naturalistic landscaping. Libertia cranwelliae is perfect for gardeners wanting a resilient, low maintenance plant with strong visual appeal.

Libertia cranwelliae plants with green and orange tipped foliage and adorned with white flowers.
Libertia cranwelliae white flower with yellow-green foliage.

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Suited to regions:All regions
Plant type:Flaxes
Height:50 cm
Spread:50 cm
Flowering time:Spring, Summer
Tolerances:Coastal, Extended dry periods, Hardy, Wind
Garden uses:Borders, Containers, Living areas, Paths & Steps, Patios, Pool areas
Garden styles:Architectural, Backyard, City & Courtyard, Coastal, Frontyard, Japanese, Modern, Native, Riparian
Easy to grow?Yes
Maintenance requirementsLow
Growth rateMedium
Also known asCranwell's Iris
Sku11951

How to grow Libertia cranwelliae in NZ

Libertia cranwelliae grows best in full sun or partial shade and prefers free draining soil. It tolerates coastal exposure, light frost, and periods of dryness once established. Water regularly during the first growing season to help the root system develop. This native species performs reliably across most New Zealand regions, including both coastal and inland environments.

Libertia cranwelliae care tips

Caring for Libertia cranwelliae is simple thanks to its naturally hardy nature. Remove old or damaged leaves to keep the clump tidy and encourage fresh growth. Cut back spent flower stems once blooming has finished. Mulch lightly to help conserve moisture, but avoid covering the crown. Feeding is rarely needed, though a light compost dressing in spring can support strong growth.

Libertia cranwelliae size, spacing, and growth rate

Libertia cranwelliae typically grows fifty to eighty centimetres tall and forty to sixty centimetres wide. Space plants forty to fifty centimetres apart when mass planting. The growth rate is moderate, forming neat clumps over time and slowly expanding via short rhizomes. Its upright foliage and bright flowers make it a distinctive structural plant.

Landscaping uses for Libertia cranwelliae

Libertia cranwelliae is ideal for native gardens, rockeries, borders, and low maintenance landscapes. Its upright, elegant foliage creates strong vertical texture in plantings. Use it along pathways, in mass plantings, or as an accent among shrubs and grasses. It pairs beautifully with New Zealand natives such as hebes, carex, and flaxes.

Why buy Libertia cranwelliae from The Plant Company?

Libertia cranwelliae from The Plant Company is supplied as strong, healthy plants selected for vigour, form, and dependable performance. As New Zealands most trusted plant nursery, we grow each plant with care to ensure excellent establishment and long term success. Customers receive expert guidance, careful packing, and reliable service. Choosing this Libertia from The Plant Company guarantees quality, resilience, and lasting garden appeal.

Questions and Answers

Have a question about Libertia cranwelliae (Cranwell's Iris)? We are here to help.

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