Phormium ‘Duet’

Flax lily 'Duet'

From: £47.95

Phormium ‘Duet’ is a striking, compact evergreen perennial known for its sword-like leaves with creamy white margins and green centres. Reaching 50-100cm in height, this plant adds dramatic vertical interest to gardens and containers. Thriving in full sun to partial shade and well-drained soil, ‘Duet’ is low-maintenance and drought-tolerant once established. It also withstands coastal conditions, making it ideal for diverse landscapes.

With its architectural form and contrasting foliage, Phormium ‘Duet’ provides year-round interest, enhancing garden design effortlessly. Perfect for garden borders, rock gardens, and containers, it is an excellent choice for adding texture and colour to your outdoor space.


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Origin: Cultivar of horticultural origin, species native to New Zealand
Genus: Phormium
Species / Cultivar: 'Duet'
Common Name: Flax lily 'Duet'
Synonym: Phormium tenax 'Duet'

Plant Biography

Phormium are a genus of only two species: Phormium tenax which is native to New Zealand and Norfolk Island, and Phormium cookianum which is native only to New Zealand.

Known as New Zealand Flax, these plants have historically been used by the Māori people as a source of fibre for creating textiles, rope and sails.

More recently they have become ornamentally popular around the world, becoming beloved for their spectacular form, leading to the creation of many new cultivars in recent years.

Phormium 'Duet'
Soil: Moist but Well Drained
Soil that allows water to drain at a moderate rate, without the water pooling.
Growth Rate: Medium
Expect to see moderate growth during growing season.
Water Requirement: Low
Will grow in a drier position and is unlikely to need regular watering once established.
Maintenance: Low
Minimal skill or input needed beyond the basics, a very independent plant.
Situation: Full Sun
Wants direct, unfiltered sunlight most of the day, such as a south facing position.
Eventual Height: 0.5-1m
The plant's ultimate height in typical growing conditions.
Eventual Spread: 0.1-0.5m
The plant's ultimate spread in typical growing conditions.
Hardiness: Hardy
Survives unprotected in an average winter. May need protection in extreme long frosts.
Habit: Evergreen
Always in leaf throughout the year. It won't lose all its leaves at any one time.
Care & Size Guidance

Care & Size Guidance

Phormium  ‘Duet’, also known as New Zealand Flax, requires well-draining soil and full sun to partial shade. Water regularly, especially during the growing season, but avoid waterlogged conditions.

This evergreen perennial can reach a height and spread of approximately 1 metre. Regular pruning of dead leaves and flower stalks helps maintain its shape and appearance. It is adaptable to various soil types and is drought-tolerant once established, making it an excellent choice for coastal gardens and landscapes.

Expert Tip

As with all Phormium, protection is recommended in colder parts of the country or in extreme freezes.


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