Call us: 0800 843 752Free shipping for orders $150 or over
Gift Vouchers

NZ Iris

The NZ Iris, scientifically known as Libertia grandiflora, is a stunning perennial plant that flourishes in New Zealand's diverse landscapes. Renowned for its striking sword-like foliage and beautiful white flowers, the NZ Iris brings a touch of elegance to any garden. As an adaptable plant, it thrives in various conditions, making it a favorite among gardeners and landscapers alike. With its ability to form lush clumps, Libertia grandiflora not only enhances visual appeal but also plays a vital role in attracting pollinators.

Libertia grandiflora (NZ Iris)

NZ Iris, Mikoikoi, NZ Grand Iris

Libertia grandiflora, known as the NZ Iris, is a clump-forming New Zealand native perennial valued for its sword-like green foliage and striking white flowers in spring. Flower stems rise above the leaves, followed by decorative seed capsules. This hardy plant grows to approximately 60 cm tall and 40 cm wide, thriving in full sun to partial shade. It’s ideal for borders, native gardens, and mass planting.

Libertia grandiflora plant with elegant white flowers and lush, dark green foliage.
  • Suited to regions:
    All regions
  • Plant type:
    Flaxes
  • Height:
    60 cm
  • Spread:
    75 cm
  • Flowering time:
    Spring
  • Garden uses:
    Borders, Containers, Living areas, Parks, Paths & Steps, Pool areas, Specimen
  • Garden styles:
    Architectural, Backyard, City & Courtyard, Frontyard, Japanese, Modern, Native
An established Libertia ixioides plant with green and orange leaves and masses of white flowers.
Most Popular

Libertia ixioides

Libertia ixioides, commonly known as Mikoikoi, is a striking New Zealand native perennial with stiff, sword-like leaves in shades of green, bronze...

From$13.80
libertia-cranwelliae-
Most Popular

Libertia cranwelliae (Cranwell's Iris)

Libertia cranwelliae, commonly known as the NZ Iris or Mikoikoi, is a NZ native grown for its beautiful, white flowers and attractive foliage. The...

From$13.80
A garden with Libertia formosa (Chilean Iris) plants with masses of white flowers above dark green foliage.
Most Popular

Libertia formosa (Chilean Iris)

Libertia formosa (Chilean Iris) is a striking, clump-forming perennial known for its elegant white flowers and sword-like green foliage. Native to...

From$13.80
Libertia Highlander plant.
Most Popular

Libertia Highlander (Libertia ixioides Highlander)

Libertia Highlander is a variety of the commonly known, NZ Iris or Mikoikoi, and is a plant that provides year-round style and interest. The plants...

Libertia paniculata plant with white flowers.
Most Popular

Libertia paniculata (Grass Flag)

Libertia paniculata is grown for its pretty flowers which are pure white and held on slender stems through spring and summer. They result in green...

Large Black Rage Phormium in a garden with black foliage.
Most Popular

Phormium Black Rage (Black Flax)

Phormium Black Rage is a dwarf Flax that produces smoky, dark grey foliage. It grows to 80 cm tall and the same wide in full sun on a well-drained...

From$18.60
phormium-veneer-
Most Popular

Phormium Veneer

Phormium Veneer is a colourful and very popular NZ native flax that features striking orange and brown stripes. It grows as a very tidy clump to...

From$17.94
dianella-tasmanica-wyeena-
Most Popular

Dianella Wyeena

Dianella Wyeena is renowned for its variegated foliage which are dark green with a cream-coloured margin. This NZ Flax Lily grows as a tidy clump to...

From$23.94
phormium-rainbow-maiden-1
Most Popular

Phormium Rainbow Maiden

Phormium Rainbow Maiden is a variety of Flax that produces long leaves that are dark pink with a dark red-brown margin. This variety typically grows...

From$18.60
Dianella tasmanica (Tasman Flax Lily) plants with green foliage and blue flowers.
Most Popular

Dianella tasmanica

Dianella tasmanica, commonly known as the Tasman Flax Lily, produces upright, strap-like leaves which are a rich, dark green and have a lush...

From$16.74
Libertia grandiflora (NZ Iris)

Did you find what you are looking for?

You might be interested in exploring Libertia or Flaxes.

Search Libertia grandiflora (NZ Iris)

Growing Conditions for Libertia grandiflora

Libertia grandiflora prefers well-draining soil and benefits from a sunny to partially shaded position. When planted in full sun, it produces more abundant blooms, while some shade can help it withstand the heat of the day. This perennial can tolerate a range of soil types, including sandy or clay soils, but it flourishes in slightly acidic to neutral pH levels.

To give your NZ Iris the best chance of thriving, ensure it is well-watered, especially during dry spells. With proper care, Libertia grandiflora can become a low-maintenance addition to your garden, requiring minimal intervention after established.

Companion Plants

Pairing your NZ Iris with other plants can create a visually appealing garden. Consider blending it with varieties like Libertia ixioides or Libertia cranwelliae to achieve stunning contrasts in both color and texture. The lush foliage of these plants complements the vibrant flowers of Libertia grandiflora, creating a harmonious garden space.

Additionally, incorporating grasses or other native New Zealand plants, such as Dianella Stampede and Dianella Lucia, can further enhance the natural beauty of your landscape. These plants thrive in similar conditions and can provide a stunning backdrop for the delicate flowers of the NZ Iris.

Landscape Uses for Libertia grandiflora

The NZ Iris is a versatile plant that can be used in various landscape designs. Whether in mixed borders, as a ground cover, or in container gardenings, such as alongside Phormium Dazzler, Libertia grandiflora shines. Its ability to create a dense, bushy appearance makes it perfect for adding structure to your garden.

In addition to its aesthetic value, this resilient plant also serves functional purposes. The dense foliage acts as a natural barrier, which can help deter pests and protect more delicate plants. As an added benefit, the flowers of the NZ Iris attract bees and butterflies, making it a wonderful choice for creating a pollinator-friendly garden.

Maintenance Tips for NZ Iris

Maintenance of Libertia grandiflora is straightforward and requires minimal effort. Regular watering during dry spells will keep the plant healthy, and occasional deadheading of spent flowers can encourage new blooms. As the plant matures, it may also benefit from a light trim in early spring to promote fresh growth.

For those looking to expand their garden further, consider exploring other varieties such as Libertia formosa. Each type brings its own unique qualities while maintaining the charm of the NZ Iris.

In summary, Libertia grandiflora, the NZ Iris, is an exquisite addition to any garden. With its beauty, versatility, and easy maintenance, it is sure to enhance your outdoor space for years to come. Embrace the elegance of this New Zealand native and enjoy its many benefits in your landscaping endeavors.


Contact us

Whether you need assistance finding the plant you’re looking for or you simply want to know more about who we are and what we do, we invite you to get in touch with us today. A member of The Plant Company team will get back in touch as soon as possible.

–The Plant Company

Explore Garden Inspiration

Sign up to receive a free $10 Voucher You won’t be bombarded with emails, just titbits of quality information from time to time Sign up
Free shipping on orders over $150!

Join our community of happy customers.

4.9

411 Google reviews