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large flax plant

A large flax plant is an iconic feature in New Zealand gardens, valued for its dramatic foliage, striking vertical lines, and impressive size. Whether you're designing a native planting scheme, looking for an architectural accent, or seeking a low-maintenance plant that stands out year-round, a large flax plant offers exceptional versatility and resilience. With their bold presence and ability to thrive in a range of conditions, large flaxes add structure, colour, and movement to outdoor spaces, making them a favourite among gardeners and landscapers across the country.

Phormium cookianum

4.5 from 2 customers

Phormium cookianum, commonly known as Mountain Flax or Wharariki, is a graceful New Zealand native valued for its arching green leaves and tall flower spikes. It typically grows 1–1.5 metres tall and wide, making it ideal for borders, mass plantings, or coastal gardens.

Suited to regions: All regions
Plant type: Flaxes
Height: 1.50 m
Spread: 1.50 m
Flowering time: Summer
Tolerances: Coastal, Extended dry periods, Hardy, Wet, Wind
Garden uses: Banks, Living areas, Ponds
Garden styles: Backyard, City & Courtyard, Coastal, Frontyard, Modern, Native, Riparian
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.

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
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...

From$249.95
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$14.95
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$8.50
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$14.95
dianella-revoluta-kentlyn--2
Dianella 'Kentlyn'

Dianella 'Kentlyn' is a hardy evergreen flax lily valued for its graceful arching blue green foliage that provides year round colour and texture...

From$16.49
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
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 '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$14.95
Phormium 'Emerald Green' plants in a mixed planting.
Phormium 'Emerald Green'

Phormium 'Emerald Green' is a compact New Zealand flax valued for its rich emerald green foliage and tidy growth habit. This hardy evergreen provides...

From$14.95
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$19.95
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$14.95
zamioculcas-black-knight-
Zamioculcas Black Knight (Zamioculcas Plant)

Zamioculcas Black Knight is a very popular indoor plant owing to its dark and showy foliage. It grows as a clump and produces upright fronds which...

From$41.33
pb-95-planter-bags-
PB95 Planter Bags (Large Planter Bags)

PB95 Planter Bags are a strong and practical option for growing large trees, specimen shrubs, fruit plants, natives, and advanced nursery stock...

From$230.50
rhaphidophora-decursiva-
Rhaphidophora decursiva

Rhaphidophora decursiva (Dragon Tail Plant) is a striking tropical climber known for its large, deeply split leaves that become more dramatic as the...

From$44.09
clianthus-puniceus-
Clianthus puniceus (Parrot Beak Plant)

Clianthus puniceus (Kakabeak) is a spectacular New Zealand native shrub renowned for its striking clusters of brilliant red, beak shaped flowers that...

From$44.09
Sedum rubrotinctum (Jelly Bean Plant) bright red foliage.
Sedum rubrotinctum (Jelly Bean Plant)

Sedum rubrotinctum, commonly known as Jelly Bean Plant or Pork and Beans Plant, is a compact, low-growing succulent reaching 15–20 cm tall and...

From$21.39
Juncus effusus plants growing in water.
Juncus effusus (Soft Rush Plant)

Juncus effusus (Spiral Rush) is an eye catching rush valued for its distinctive twisting green stems, compact clumping habit, and strong...

From$16.49
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
Disphyma australe pink flowers and fleshy, green leaves.
Disphyma australe (NZ Ice Plant)

Disphyma australe, commonly known as NZ Ice Plant, is a hardy and attractive groundcover valued for its fleshy, bright green foliage and striking...

From$19.50
agave-americana-variegata--1
Agave americana 'Variegata' (Variegated Century Plant)

Agave americana 'Variegata' is a striking evergreen succulent valued for its bold architectural form and strongly variegated foliage. It forms a...

From$15.95
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
indoor-plant-fertiliser-tablets-1
Indoor Plant Fertiliser Tablets

Indoor plants require feeding from the time you get them home as nurseries typically only put enough fertiliser in the pots to last 4-8 weeks after...

From$34.95
White flowers on a Cistus 'Snowmound' plant with green foliage.
Cistus 'Snowmound' (White Rock Rose Plant)

Cistus ‘Snowmound’ is a compact evergreen shrub that produces a breathtaking display of pure white flowers with golden-yellow centres from late...

From$24.77
70-windbreak-2
Shadecloth - 70% Shade (Shade Cloth For Plants)

This shade cloth for plants, which is also used as plant windbreaks, reduces light levels and windspeeds by 70%. Therefore, 30% of the wind or light...

From$499.80
5-litre-plant-pots-
5 Litre Plant Pots

5 Litre Plant Pots are a practical choice for growing larger shrubs, perennials, grasses, herbs, and young trees. They provide generous root space to...

From$79.20
A strong and studry planting spade.
Ace1 Planting Spade

The Ace 1 planting spade is a must for any gardener. This spade is designed so it can penetrate the ground easily without jarring the wrists in the...

From$225.86
Moss pole for plants.
Moss Pole For Plants (Moss Pole For Plants)

These moss poles for plants are made from Coir Fibre (i.e., the husks of coconuts). They are an eco-friendly option to help plants grow healthier and...

From$6.90
10-litre-plant-pots-
10 Litre Thermoformed Plant Pots

These lightweight pots are a cost effective means for growing on plants. They feature a strong and broad rim, have been UV stabilised for NZ...

From$5.76
3-litre-plant-pots-
3.5 Litre Plant Pots

3.5 Litre Plant Pots are a versatile choice for growing shrubs, perennials, grasses, herbs, and other established plants. They provide generous root...

From$48.96
fertiliser-for-acid-loving-plants-
Fertiliser for acid loving plants

Fertiliser for acid loving plants provides targeted nutrition for plants that perform best in acidic soil conditions. It helps support healthy...

From$7.95

Did you find what you are looking for?

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

Search large flax plant

Why Choose a Large Flax Plant?

Large flax plants, especially New Zealand native Phormium varieties, deliver strong garden impact. Their sword-shaped leaves come in shades from rich green to copper, bronze, and vibrant stripes, providing season-long interest. Once established, these plants are tolerant of wind, coastal exposure, and dry conditions. They're perfect for creating privacy screens, anchoring mixed borders, or making a statement when mass-planted. The upright form and robust size of large flax plants also offer valuable habitat and nectar for native birds, especially when the tall flower spikes appear in summer.

Top Large Flax Varieties for New Zealand Gardens

When choosing a large flax plant, Phormium tenax is a classic favourite. Known as New Zealand flax or harakeke, Phormium tenax can reach up to 2-3 metres tall and forms elegant clumps of tough, evergreen leaves. This versatile species is ideal for larger planting areas, naturalistic landscapes, and wet sites, as well as formal designs where strong structure is desired.

For those wanting a variety with striking foliage, consider these options: - Phormium 'Evening Glow': Renowned for its bright red and pink tones, this cultivar adds a bold splash of colour while retaining the classic flax form. - Phormium 'Chocomint': This unique large flax plant offers chocolate-brown leaves with mint-green highlights, bringing interesting contrast to the garden. - Phormium 'Jester': An eye-catching choice, featuring stripes of cherry-pink and apple green for a contemporary look. - Phormium 'Velvet Underground': With deep burgundy foliage, this variety stands out in both small groupings and mass plantings.

How to Grow and Care for Large Flax Plants

Large flax plants are very hardy and require minimal maintenance once settled in the garden. They prefer full sun to light shade and will cope with sandy, loamy, or clay soils as long as drainage is reasonable. They tolerate coastal conditions, wind, and dry spells once established. Mulching around the base helps retain soil moisture and suppress weeds. Any older or damaged leaves can be trimmed to keep the plant looking tidy, but overall maintenance is low.

For best results, consider combining multiple flax varieties like Phormium tenax with colourful cultivars such as Phormium 'Evening Glow' and Phormium 'Chocomint'. Not only will you create an impactful landscape, but you’ll also offer wonderful resources for wildlife.

Shop Large Flax Plants for Your Garden

A large flax plant can dramatically transform your garden, adding height, movement, and native character. Explore our range of Phormium species and cultivars, including Phormium tenax, Phormium 'Evening Glow', Phormium 'Chocomint', Phormium 'Jester', and Phormium 'Velvet Underground', to find the perfect large flax for your landscape. Add a touch of New Zealand’s wild beauty to your home with these striking, hard-working plants.


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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

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