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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.

Dianella tasmanica (Tasman Flax Lily) plants with green foliage and blue flowers.

Dianella tasmanica

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Dianella tasmanica, commonly known as the Tasman Flax Lily, produces upright, strap-like leaves which are a rich, dark green and have a lush appearance. Flower stems rise above the foliage through spring to bear masses of delicate, blue flowers, which result in blue berries.

Suited to regions: All regions
Plant type: Flaxes
Height: 1.00 m
Spread: 1.00 m
Flowering time: Spring, Summer
Tolerances: Coastal, Hardy
Garden uses: Borders, Containers, Living areas, Paths & Steps, Pool areas
Garden styles: Architectural, Backyard, City & Courtyard, Coastal, Frontyard, Japanese, Modern
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. Delicate blue flowers appear during spring and early summer, followed by attractive blue berries that extend the seasonal display.

Suited to regions: All regions
Plant type: Flaxes
Height: 60 cm
Spread: 40 cm
Flowering time: Spring
Tolerances: Extended dry periods, Wet
Garden uses: Borders, Containers, Living areas, Paths & Steps, Ponds, Pool areas
Garden styles: Architectural, Backyard, City & Courtyard, Frontyard, Japanese, Mediterranean, Modern
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Dianella tasmanica

Did you find what you are looking for?

You might be interested in exploring related Latin Names - Agapanthus, Callistemon, and Dianella, or related Categories - Flaxes, Perennials, and Evergreen Shrubs.

Search blue flax

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.


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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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