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growing flax plants

If you’ve ever admired the striking, sword-like foliage of New Zealand’s iconic flax, you’re not alone. Growing flax plants offers both beauty and versatility for gardeners of all skill levels. Flax, or Phormium, is renowned for its architectural appeal, vibrant colours, and resilience in a range of conditions. Whether you’re looking to create a lush coastal border, establish native habitat, or add texture to your garden, flax plants are an excellent choice. Their low maintenance and year-round interest make them a standout, especially for Kiwi gardens.

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.

From $14.95

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.

From $7.50

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
Dianella 'Blaze' plants featuring stunning bronze-green foliage in a garden.
Dianella 'Blaze'

Dianella 'Blaze' is a striking flax lily grown for its colourful, strap like foliage that develops rich shades of green, bronze, and fiery red...

From$16.49
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-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
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
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
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
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$20.63
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
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
indoor-plant-fertiliser-
Indoor Plant Fertiliser

All potted plants require indoor plant fertiliser. This is particularly important as many nurseries only put enough fertiliser in the pots to last...

From$16.95
15-litre-plant-pots-
1.5 Litre Plant Pots

1.5 Litre Plant Pots are a practical choice for growing young shrubs, perennials, grasses, herbs, and other developing plants. They provide useful...

From$27.36
native-plant-fertiliser-
Native Plant Fertiliser

Native Plant Fertiliser is specially formulated to support healthy growth in a wide range of NZ native plants. It provides balanced nutrition to...

From$16.95
pb-8-planter-bags-1
PB8 Planter Bags (Mushroom Grow Bags)

PB8 Planter Bags are a practical and economical option for growing larger trees, shrubs, fruit plants, natives, and other established nursery stock...

From$51.69
pb-40-planter-bags-
PB40 Planter Bags (Tomato Grow Bag)

PB40 Planter Bags are a durable and practical option for growing large trees, shrubs, fruit plants, natives, and advanced nursery stock. Their...

From$121.64
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
plant-pots-
2.5 Litre Plant Pots

2.5 Litre Plant Pots are a practical option for growing shrubs, perennials, grasses, herbs, and other developing plants. They provide ample root...

From$37.44
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
half-litre-plant-pots-
0.5 Litre Plant Pots

0.5 Litre Plant Pots are a practical choice for growing young plants, herbs, seedlings, and smaller ornamentals. Their compact size makes them ideal...

From$23.04
Plant watering bottle for watering a plant on a shelf.
Plant Watering Bottle

Plant Watering Bottles provide a simple and convenient way to deliver water directly to indoor plants, seedlings, cuttings, and small container...

From$55.13
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
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 waterproof paper plant tags for sale.
Waterproof Paper Plant Tags

Waterproof Paper Plant Tags provide a practical way to label plants, trays, pots, and nursery stock while resisting moisture during everyday growing...

From$26.78
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
35-litre-planter-bags-4
35L Planter Bags (Grow Bags For Potatoes)

35L Planter Bags are a practical and durable option for growing trees, shrubs, fruit plants, natives, and larger nursery stock. Their flexible...

From$8.93
Kniphofia 'Border Ballet' plants in a cottage garden featuring orange flowers and lush green foliage.
Kniphofia 'Border Ballet' (Hot Poker Plant)

Kniphofia 'Border Ballet' is a variety of the commonly known Red Hot Poker, and is grown for its colourful flowers. Stems rise above the foliage...

From$20.63
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
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
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
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...

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

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Why Grow Flax Plants?

Flax plants are native to New Zealand and thrive in the country’s diverse climates. Known for their tolerance to salt spray, wind, and drought, Phormium varieties are perfectly suited to coastal and urban settings. Growing flax plants not only provides striking foliage, but also attracts native birds with their nectar-rich flowers. They offer erosion control, shelter, and are a staple in eco-friendly landscape designs.

Best Flax Varieties for Your Garden

Choosing the right flax variety is key when planning your garden. The classic Phormium tenax is a robust species, featuring tall, upright leaves and impressive flower spikes. For smaller spaces or container gardening, Phormium 'Green Dwarf' and Phormium 'Pepe' (Dwarf Flax) are perfect choices, offering compact growth without sacrificing the dramatic look. If you prefer softer, arching leaves, Phormium cookianum provides a more relaxed form and easily mixes into mixed plantings. For a touch of colour and contemporary flair, Phormium 'Velvet Underground' stands out with deep, velvety hues.

Tips for Successfully Growing Flax Plants

Flax plants love sunny positions but will also tolerate partial shade. When planting, ensure your soil is well-draining – heavy clay can hinder growth. Flax roots are tough, but they benefit from organic matter mixed into the soil. Water young plants regularly until established, then enjoy their drought-resistant nature. Mulching helps retain moisture and discourages weeds. For city gardens, flax is prized for minimal maintenance; simply remove old leaves each year to keep plants tidy.

Flax in Landscaping and Beyond

Growing flax plants is more than a gardening trend – it’s a sustainable choice with practical benefits. Flaxes are perfect for windbreaks, hedges, and enhancing biodiversity. Their striking form complements native plantings and modern designs alike. In Māori culture, flax has long been used for weaving and crafting, making it a plant with deep heritage and contemporary appeal.

Discover Your Next Flax Plant

If you’re ready to start growing flax plants or expand your collection, explore our curated selection of Phormium varieties. From tall and statuesque Phormium tenax to colourful Phormium 'Velvet Underground', there’s a flax for every garden and every gardener. Plant a piece of New Zealand’s landscape and enjoy the lasting benefits of flax in your outdoor space.

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.

Illustration of plant leaves.
Our garden favourites Coprosma acerosa and Photinia 'Red Robin' get lots of love, but don’t miss out on a few lesser-known delights: Prunus 'Shirotae', Orange Barnfield, and Feijoa 'Antoinette'.
–The Plant Company

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