PHORMIUM TENAX DUET

Planting Phormium tenax ‘Duet’

Phormium tenax ‘Duet’ is a striking evergreen flax with upright, sword-like leaves striped in green and creamy yellow. It provides strong architectural form and year-round interest, making it ideal for modern gardens, borders, and containers.

Choosing the right position

• Prefers full sun to partial shade
• Best foliage colour develops in a bright, sunny position
• Ideal for borders, gravel gardens, and containers
• Works well as a feature or structural plant
• Tolerates coastal conditions and exposed sites once established

Soil requirements

• Thrives in well-drained soil
• Prefers moderately fertile soil
• Tolerates a range of soil types including sandy and loamy soils
• Does not tolerate heavy, waterlogged conditions
• Improve drainage with grit or organic matter if needed

How to plant

• Dig a hole twice the width of the root ball and similar depth
• Position the plant so the base sits level with the soil surface
• Backfill with soil and firm gently
• Water thoroughly after planting
• Space plants around 60–100cm apart depending on size
• Apply a mulch to retain moisture

Planting in containers

• Use a large pot with good drainage holes
• Fill with a free-draining compost mix
• Choose a heavy container to support the plant’s height
• Water well after planting
• Place in a sunny or partially shaded position

Ongoing Care and Maintenance

Phormium ‘Duet’ is low maintenance and well-suited to a wide range of garden conditions.

Watering

• Water regularly during the first growing season
• Once established, it is relatively drought tolerant
• Water during prolonged dry spells
• Container plants require more frequent watering
• Avoid waterlogging, especially in winter

Feeding

• Apply a balanced fertiliser in spring
• Mulch annually with compost or organic matter
• Container plants benefit from occasional liquid feeding
• Avoid excessive feeding, which can lead to soft growth

Pruning and tidying

• Remove dead or damaged leaves at the base
• Cut back any tatty foliage to maintain appearance
• Avoid cutting healthy leaves unnecessarily
• Keep the plant tidy by removing debris

Mulching

• Apply organic mulch in spring
• Helps retain moisture and suppress weeds
• Improves soil structure over time
• Keep mulch away from the crown

Seasonal Care and Common Issues

With proper care, Phormium ‘Duet’ will provide bold structure and colour throughout the year.

Seasonal performance

• Evergreen foliage provides year-round interest
• Variegated leaves add contrast and brightness
• Architectural shape makes it a strong focal point
• May produce tall flower spikes on mature plants

Winter care

• Hardy in mild climates but may need protection in colder areas
• Protect from severe frost and cold winds
• Ensure good drainage during winter
• Container plants may need to be moved to a sheltered location

Common problems

• Leaf damage can occur in strong winds or frost
• Root rot may develop in poorly drained soil
• Leaves may brown at the tips in very dry conditions
• Generally pest and disease resistant
• Poor growth may result from heavy or compacted soil

Phormium tenax ‘Duet’ is a bold and versatile plant that adds structure, colour, and movement to the garden. Its low maintenance nature and striking appearance make it ideal for modern planting schemes, containers, and coastal gardens. With a sunny position and well-drained soil, it will thrive and remain a standout feature all year round.

• Size
  7.5lt

Kindly be aware when mix/ mixed/ assorted/ varieties is mention you will receive ONLY ONE plant/ item, which will be selected for delivery, photos may show different varieties available - which may also vary 

 
We currently only deliver within the island of Ireland, other countries can be quoted for by contacting [email protected] or via telephone on 06964084
 

Standard Delivery is FREE on orders over €250*

All standard deliveries will be completed within 5-7 working days via DPD Couriers, any delay to this delivery time, the customer will be notified by One of our staff.

The in-Store delivery charge will vary compared with online, in-store delivery charge is done on a case by case basis. 

* Only mainland Ireland addresses qualify for free delivery.
 

Live Plants Delivery

Our live plants are packed with care and diligence by our staff, our horticulturists review each plant before despatch to ensure quality is maintained.
Live Plant delivery charges are not calculated on weight but on the space required per package to ensure safe delivery, so delivery charges may vary as some plants require more space than others when packed.
All live plants are despatched within 3-5 working days where possible, our couriers aim to deliver within 48 hours of despatch from our Garden Centre to allow the plant to arrive in healthy condition.
 

Click & Collect

Can’t wait for delivery? Why not try our FREE Click & Collect service? Simply make your purchase online and collect it from our store located in Croagh Co. Limerick. Our staff will contact you by phone when your order is ready for collection (Please allow 24 hours minimum). When collecting your item, call the store on 069-64084. We will then load into your car as required. This service is available in-store 9am – 6pm Monday – Saturday (No collections on Sundays)

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