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large flax

Looking for striking, robust foliage plants that make a big impact? Large flax is an iconic choice for gardens across New Zealand, prized for its dramatic upright leaves and exceptional adaptability. Whether you’re designing coastal landscapes, restoring native areas, or seeking a bold feature for your backyard, large flax offers a mix of size, resilience, and architectural beauty. With several cultivars available, there’s a large flax to suit every setting—plus, the added benefits of attracting wildlife and providing great erosion control.

Phormium tenax plant in a garden with green foliage.

Phormium tenax

5 from 2 customers

Phormium tenax, commonly known as the NZ flax or Harakeke, is a flax plant that produces erect, green, sword-like leaves. Stems rise above the foliage in summer to bear twisted-looking flowers that result in black seed pods in autumn, and the nectar produced by the flowers attracts both birds and butterflies. Harakeke grows as a clump to about 2 m tall and the same wide, performing best when planted in full sun on a well-drained site. It is a popular landscape option that is also often used to contrast with other plant colours. Mass planting on a bank not only provides an outstanding display but is also excellent for helping to stabilise the soil.

Suited to regions: All regions
Plant type: Flaxes
Height: 2.00 m
Spread: 2.00 m
Flowering time: Summer
Tolerances: Coastal, Extended dry periods, Hardy, Wet, Wind
Garden uses: Banks, Living areas, Parks, Ponds, Pool areas, Specimen
Garden styles: Architectural, Backyard, City & Courtyard, Coastal, Frontyard, Japanese, Mediterranean, Modern, Native, Riparian
A large Phormium 'Dark Delight' plant with elegant, purple foliage.

Phormium 'Dark Delight'

5 from 3 customers

Phormium 'Dark Delight', also known as Dark Purple Flax, is a bold New Zealand native flax prized for its broad, upright leaves in deep purple to bronze shades. This striking ornamental variety brings drama, colour, and structure to gardens year round. Hardy and versatile, it thrives in a wide range of NZ conditions, from coastal sites to urban landscapes. Phormium 'Dark Delight' is an excellent choice for gardeners seeking a low maintenance, architectural feature.

Suited to regions: All regions
Plant type: Flaxes
Height: 1.20 m
Spread: 1.20 m
Flowering time: Summer
Tolerances: Coastal, Extended dry periods, Hardy, Wet, Wind
Garden uses: Living areas, Parks, Ponds, Pool areas, Specimen
Garden styles: Architectural, Backyard, City & Courtyard, Coastal, Frontyard, Japanese, Mediterranean, Modern, Native, Riparian
Phormium cookianum

Phormium cookianum, commonly known as Mountain Flax or Wharariki, is a graceful New Zealand native valued for its arching green leaves and tall...

From$9.95
Phormium 'Surfer Bronze' plants for sale at The Plant Company nursery.
Phormium 'Surfer Bronze'

Phormium 'Surfer Bronze' is a compact and stylish New Zealand native flax with narrow, upright leaves in rich bronze tones. This striking ornamental...

From$12.95
Phormium 'Emerald Gem' in a native garden.
Phormium 'Emerald Gem'

Phormium 'Emerald Gem' is a dwarf variety of Mountain Flax or Wharariki. It produces emerald-green leaves and grows to 60 cm tall and 70 cm wide in...

From$9.95
Large Black Rage Phormium in a garden with black foliage.
Phormium 'Black Rage'

Phormium 'Black Rage' is a striking New Zealand native flax known for its bold, upright leaves in deep shades of dark purple to near black. This...

From$12.95
phormium-veneer-
Phormium 'Veneer'

Phormium 'Veneer' is a striking NZ flax known for its upright, sword like leaves with rich bronze and green tones. This hardy evergreen adds bold...

From$12.95
Phormium 'Green Dwarf' flax plant in a native garden with Oioi plants.
Phormium 'Green Dwarf'

Phormium 'Green Dwarf', also known as Dwarf Green Flax, is a compact, tidy New Zealand flax cultivar with lush, bright green, strap-like leaves. It...

From$8.50
Phormium 'Rainbow Red' red and purple striped foliage.
Phormium 'Rainbow Red'

Phormium 'Rainbow Red' is a vibrant New Zealand native flax admired for its bold, arching leaves in shades of bronze, red, and pink. This striking...

A mass planting of Dianella caerulea 'Little Jess' plants with lush, green foliage.
Dianella 'Little Jess'

Dianella 'Little Jess' is a variety of NZ Flax Lily that bears spikes carrying delicate, blue flowers in spring above lush, mid-green leaves. Small...

From$16.49
dianella-revoluta-kentlyn--2
Dianella Kentlyn

Dianella Kentlyn is a variety of the commonly known, Flax Lily, produces upright, strap-like leaves which are a rich, dark green with a blue...

From$16.49
phormium-pepe-
Phormium 'Pepe' (Dwarf Flax)

Phormium 'Pepe' is a compact New Zealand flax prized for its fine green foliage and neat mounding growth habit. This hardy evergreen provides year...

From$17.95
Phormium 'Surfer' plants in pots for sale at The Plant Company nursery.
Phormium 'Surfer'

Phormium 'Surfer' is a compact New Zealand native flax admired for its striking green leaves edged with bronze and red tones. Its upright, arching...

From$12.95
Dianella Revelation plants growing in a garden.
Dianella 'Revelation'

Dianella 'Revelation' features flower stems that rise above the foliage through spring and summer to bear masses of delicate, blue flowers, which...

From$16.49
dianella-caerulea-goddess-
Dianella Goddess

Dianella Goddess is a variety of the commonly known, NZ Flax Lily, and produces upright, strap-like leaves which are a rich, dark green with a blue...

From$20.63
A Sophora chathamica tree growing in a garden with green foliage.
Sophora chathamica

Sophora chathamica (Coastal Kōwhai) is a stunning New Zealand native tree known for its masses of bright yellow flowers that appear in early spring...

From$323.65
Phormium 'Jack Spratt' plants for sale at The Plant Company nursery.
Phormium 'Jack Spratt'

Phormium 'Jack Spratt' is one of the smallest New Zealand native flax varieties, admired for its narrow, upright leaves in rich bronze to dark...

From$12.95
Dianella tasmanica (Tasman Flax Lily) plants with green foliage and blue flowers.
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$19.25
strelitzia-nicolai-
Strelitzia nicolai (White Bird Of Paradise Plant)

Strelitzia nicolai (Giant White Bird Of Paradise) is a bold, architectural plant known for its large banana like leaves and striking white and blue...

From$44.09
fig-mrs-williams-
Fig Mrs Williams

Fig Mrs Williams produces fruit with a purple-brown skin and amber-red flesh. The fruit are of large size and produced early season. It grows as a...

From$28.91
Sophora tetraptera (Large-leaved Kowhai) yellow flowers.
Sophora tetraptera (Large Leaved Kōwhai)

Sophora tetraptera, commonly known as the Large Leaved Kowhai, is a striking New Zealand native tree admired for its bold foliage and spectacular...

From$24.15
Libertia grandiflora plant with elegant white flowers and lush, dark green foliage.
Libertia grandiflora (NZ Iris)

Libertia grandiflora, commonly known as NZ Iris, is a hardy New Zealand native perennial admired for its elegant white flowers and sword like green...

From$16.50
Dianella 'Margaret Pringle' plant in a pot.
Dianella 'Margaret Pringle'

Dianella 'Margaret Pringle' bears spikes carrying delicate, blue flowers in spring, which are followed by small, blue berries in summer. These are...

From$20.63
Dianella caerulea 'Breeze' growing in a roadside garden.
Dianella 'Breeze'

Dianella 'Breeze' (Turutu) is a hardy and attractive perennial that brings lush, strappy green foliage and clusters of delicate blue flowers to New...

From$16.49
A large Tilia platyphyllos tree in a park.
Tilia platyphyllos (Large-leaved Lime)

Tilia platyphyllos, commonly known as Large-Leaved Linden, is a stately deciduous tree admired for its broad, heart-shaped leaves and fragrant summer...

From$515.35
pb-95-planter-bags-
PB95 Planter Bags (Growing Bags Near Me)

These PB95 planter bags are 240 microns thick and each bag holds 50 litres of potting mix. They are durable and won’t rip which makes them great for...

From$230.50
cordyline-lime-fountain-3
Cordyline Lime Fountain

Cordyline 'Lime Foutain' is a fresh and vibrant evergreen plant admired for its bright lime green foliage and graceful fountain like form. The...

From$136.04
Phormium 'Cream Delight' plant in a garden.
Phormium 'Cream Delight' (Cream Delight Flax)

Phormium 'Cream Delight' is a variety of Flax that produces leaves that are variegated with dark green and cream. This variety grows to 1.3 m tall...

OUT OF STOCK
A Phormium cookianum hookeri plant with green foliage and yellow flowers.
Phormium cookianum hookeri

Phormium cookianum hookeri is a variety of flax that produces long and broad, gently arching, green leaves. This flax typically grows to 2 m tall and...

OUT OF STOCK
Phormium 'Crimson Devil' plant with colourful foliage in a garden.
Phormium 'Crimson Devil' (Red Flax)

Phormium 'Crimson Devil' is a variety of Flax that produces leaves that are coloured various shades of red. This flax grows to 1.3 m tall and the...

OUT OF STOCK
Phormium 'Yellow Wave' plants in a mixed planting.
Phormium 'Yellow Wave'

Phormium 'Yellow Wave' is a Flax that produces yellow, sword-like leaves. It grows to 1.2 m tall and wide in full sun on a well-drained site. This...

OUT OF STOCK
A large Phormium 'Jester' plant with colourful foliage.
Phormium 'Jester'

Phormium 'Jester' is a showy variety of Flax that produces leaves that are striped with a broad, pink central band and a dark purple border. This...

OUT OF STOCK
Phormium tenax

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You might be interested in exploring related Latin Names - Dianella, and Phormium, or related Categories - Flaxes.

Search large flax

What is Large Flax?

Large flax typically refers to varieties of Phormium—our beloved native flax. The most celebrated is Phormium tenax, also known as New Zealand flax, which grows into impressive clumps up to 3 metres tall. Its sword-shaped leaves create lush, vertical lines that are perfect for filling gaps and lending structure to any garden. Large flax is incredibly tough, enduring wind, salt spray, drought, and even frost, making it a staple in both rural and urban gardens throughout the country.

Popular Large Flax Varieties

These larger varieties of flax are perfect for statement plantings, privacy screens, or windbreaks. They thrive in full sun or partial shade and adapt well to a wide range of soils, including wet and dry areas.

Uses for Large Flax in New Zealand Gardens

Large flax isn’t just beautiful—it’s incredibly practical. Use it for: - Erosion control: The robust root system stabilises slopes and streambanks. - Shelter: Tall, dense foliage forms effective windbreaks and boundary screens. - Wildlife support: Nectar-rich flowers attract tui, bellbirds, and bees. - Feature planting: Large flax stands out as a focal point in native and contemporary gardens.

Pairing different large flax cultivars can create eye-catching textures and colour contrasts, enhancing your landscape design’s depth and interest.

Caring for Large Flax

Large flax is low maintenance. It’s best planted in well-drained soil, but will tolerate boggy conditions and coastal exposure. Prune damaged leaves at the base to keep plants tidy, and divide clumps every few years to encourage fresh growth. Feeding with a balanced fertiliser in spring will keep foliage vibrant.

Discover Your Ideal Large Flax

Whether your project is a backyard revamp, a large-scale restoration, or a coastal planting, large flax ticks all the boxes for beauty, durability, and versatility. Explore stunning options like Phormium tenax, Phormium 'Moonraker' (Moonraker Flax), Phormium 'Licorice and Lime' (Licorice and Lime Flax), Phormium 'Cream Delight' (Cream Delight Flax), or Phormium 'Purple Haze' (Purple Flax Plant) to bring enduring structure and style to your landscape.

Ready to elevate your space? Browse our large flax collection and transform your garden with NZ’s most iconic foliage plant.


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.

Corokia 'Geenty's Green' and Ficus Tuffi are beloved staples, but Agapanthus 'Tinkerbell', Prunus 'Pink Perfection', and Coprosma 'Hot Chocolate' bring fresh energy to any planting scheme.
–The Plant Company

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