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blue flax

Blue flax is a stunning perennial plant admired for its delicate sky-blue flowers and fine, grass-like foliage. In New Zealand gardens, blue flax offers a graceful, cottage garden feel, especially during its abundant spring and summer flowering displays. Its upright form and subtle colour make it a popular choice for wildflower meadows, mixed borders, and landscape designs focused on native appeal and low maintenance.

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

Dianella 'Little Jess'

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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, blue berries follow the flowers. It grows to 40 cm tall and the same wide in full sun or partial shade. Dianella 'Little Jess' is commonly included in mixed plantings or borders, used in cottage gardens, or mass-planted either on a bank or as a ground cover.

From $16.49

Suited to regions: All regions
Plant type: Flaxes
Height: 40 cm
Spread: 40 cm
Flowering time: Spring
Tolerances: Coastal, Extended dry periods, Hardy, Wind
Garden uses: Borders, Containers, Living areas, Paths & Steps, Ponds, Pool areas
Garden styles: Architectural, Backyard, City & Courtyard, Coastal, Frontyard, Japanese, Mediterranean, Modern, Native
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 undertone. Flower stems rise above the foliage through spring to bear masses of delicate, blue flowers which result in blue berries. It grows to 60 cm tall and 40 cm wide in full sun or partial shade. Dianella Kentlyn is commonly mass planted either as a groundcover or on a bank, included in borders or mixed plantings, planted around the base of large trees, grown around water features such as streams and ponds, or included in cottage gardens. This is a popular plant.

From $16.49

Suited to regions: All regions
Plant type: Flaxes
Height: 60 cm
Spread: 40 cm
Flowering time: Spring
Tolerances: Extended dry periods, Wet
Garden uses: Banks, Borders, Containers, Living areas, Paths & Steps, Ponds, Pool areas
Garden styles: Architectural, Backyard, City & Courtyard, Cottage, Frontyard, Japanese, Mediterranean, Modern
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
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
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
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
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 '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
Large Jacaranda mimosifolia tree with blue flowers.
Jacaranda mimosifolia (Blue Jacaranda)

Jacaranda mimosifolia, commonly known as the Blue Jacaranda tree, is a tropical-looking tree that is widely planted because of its beautiful and...

From$50.99
Phormium tenax plant in a garden with green foliage.
Phormium tenax

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...

From$7.50
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
A large Phormium 'Dark Delight' plant with elegant, purple foliage.
Phormium 'Dark Delight'

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...

From$17.95
prostanthera-eddington-blue-
Prostanthera 'Eddington Blue'

Prostanthera 'Eddington Blue' is a stunning evergreen shrub admired for its masses of vibrant blue mauve flowers and highly aromatic foliage. This...

From$27.53
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
phlebodium-blue-star-
Phlebodium aureum Blue Star (Blue Star Fern)

The Blue Star Fern features wavy leaves that are a blue-green colour. This popular indoor plant grows as a clump to about 30 cm tall and the same...

From$38.57
perovskia-blue-spire-
Perovskia 'Blue Spire'

Perovskia 'Blue Spire', commonly known as Russian Sage, is a stunning perennial admired for its airy spikes of lavender blue flowers and aromatic...

From$24.77
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
Stunning, dark blue flowers on Salvia 'Blue Angel].
Salvia 'Blue Angel'

Salvia 'Blue Angel' is a beautiful perennial known for its soft blue flower spikes that appear generously across summer and autumn in New Zealand...

From$27.53
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 Picea pungens 'Glauca' (Colorado Blue Spruce) tree.
Picea pungens Glauca

Picea pungens 'Glauca', commonly known as the Colorado Blue Spruce, is a blue coloured conifer that grows with a broad and open, pyramidal shape. The...

From$515.35
A Rosemary 'Blue Lagoon' shrub with blue flowers in a mixed planting.
Rosmarinus 'Blue Lagoon'

Rosmarinus ‘Blue Lagoon’ is a hardy, evergreen shrub prized for its aromatic foliage and vibrant deep blue flowers. Blooming from late winter through...

From$22.01
Liriope muscari 'Blue Skies' plant with blue flowers and green foliage in a garden.
Liriope 'Blue Skies'

Liriope 'Blue Skies' is a blue-flowering Liriope that forms a tidy clump and features strap-like, dark green leaves. Flower spikes rise above the...

From$14.50
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$17.95
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 '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...

cupressus-blue-ice-4
Cupressus 'Blue Ice' (Blue Arizona Cypress)

Cupressus 'Blue Ice' is a striking evergreen conifer admired for its vibrant icy blue foliage and strong upright growth habit. This hardy tree...

From$82.92
Pittosporum 'Wrinkled Blue' speciment tree.
Pittosporum 'Wrinkled Blue'

Pittosporum ‘Wrinkled Blue’ is an attractive, upright evergreen tree known for its distinctive blue-grey foliage and dense, columnar growth habit...

From$26.15
dichroa-blue-stars--1
Dichroa Blue Stars (Evergreen Hydrangea)

Dichroa 'Blue Stars' is a striking evergreen shrub admired for its clusters of intense blue star shaped flowers followed by brilliant metallic blue...

From$30.29
Podocarpus 'Matapouri Blue' hedge.
Podocarpus 'Matapouri Blue' (Blue Tōtara)

Podocarpus ‘Matapouri Blue’, also known as Blue Totara, is a stunning New Zealand native tree prized for its striking blue-green foliage and tidy...

From$30.29
Dianella nigra plant with masses of blue berries.
Dianella nigra (New Zealand Blueberry)

Dianella nigra, commonly known as the New Zealand Blueberry or Tūrutu, is a NZ native that features lush foliage and glossy berries that vary in...

From$20.63
An upright Rosemary 'Tuscan Blue' shrub with blue flowers in a Mediterranean themed garden.
Rosmarinus 'Tuscan Blue'

The 'Tuscan Blue' Rosemary is a fast-growing and upright variety that features petite, sky-blue flowers borne amidst the dark green leaves through...

From$22.01
Dianella 'Little Jess'

Did you find what you are looking for?

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

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Why Choose Blue Flax for Your Garden?

If you’re searching for a plant that brings both elegance and resilience, blue flax could be your perfect match. Known for its drought tolerance and adaptability, blue flax thrives in New Zealand’s variable climates and looks fantastic paired with hardy companions. It works beautifully along garden edges, as a tall accent in perennial borders, or naturalised in open spaces where its soft flower movement adds dynamic interest.

Growing and Caring for Blue Flax

Blue flax prefers a sunny position with well-drained soil. It isn’t fussy about poor soil or clay, making it versatile for a range of landscapes. Once established, it requires minimal water and upkeep. In early spring, trim back old growth to encourage neat new foliage and plentiful flowers. While blue flax is generally pest and disease resistant, keeping the base free from dense weed cover will help your plants thrive.

Combine Blue Flax with Other Stunning Flaxes

For year-round interest, consider combining blue flax with other ornamental flaxes and hardy strappy-leaf plants. These add both texture and structure to your garden, creating a cohesive, easy-care landscape. Explore our handpicked favourites including Dianella 'Little Jess', an excellent compact variety with neat, blue-toned foliage, and Dianella 'Little Rev', which stands out for its attractive upright form.

Want even more impact? Plant blue flax alongside the graceful Dianella Kentlyn, the robust Dianella Goddess, or use Dianella 'Revelation' for pops of evergreen colour year-round. These species not only complement blue flax aesthetically, but also share its resilience to New Zealand garden conditions.

Landscaping Uses for Blue Flax

Blue flax isn’t just beautiful; it’s versatile. Use it in naturalistic plantings, mass-planted for erosion control on sunny slopes, or tucked into borders as a softening accent. Its nodding blue flowers attract bees, making it a valuable addition to wildlife-friendly gardens. Blue flax’s fine foliage provides a gentle contrast against bolder plants and soon weaves itself into your garden’s fabric as a reliable, lightly self-seeding perennial.

Discover how blue flax and its complementary plant partners like Dianella 'Little Jess' and Dianella Kentlyn can transform your landscape into a stunning, sustainable space. Browse our full range to find the perfect plants for your next project.

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.
Garden icons like Ficus benjamina variegata and Azara microphylla lead the way, but there’s magic in discovering Camellia 'Ariel Song', Magnolia 'DD Blanchard', and Cranberry 'Crowley' (American Cranberrybush).
–The Plant Company

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