Awarded 'Best Garden Centre in the UK' in 2018, 2021 & 2025 by the Garden Centre Association
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Allensmore Nurseries  |  SKU: 30041416  |  Barcode: 5021768001066

Phormium Tenex Plant - 15Ltr Pot

£9999
Why Purchase From Us?
🏆 Best Garden Centre in the UK in 2018, 2021 & 2025
🚚 Orders dispatched within 24 hours (next day delivery available)
🌼 Our team of experts are on hand 7 days a week
💚 Support a family run, independent business

3 in stock

Phormium tenax (New Zealand Flax / Common Flax Lily) – Evergreen Architectural Perennial

Introductory paragraph
Phormium tenax, commonly known as New Zealand flax, is a bold, architectural evergreen perennial valued for its dramatic, strap-shaped foliage and towering flower spikes. Ideal for contemporary gardens, coastal planting and feature borders, this robust plant brings strong structure and year-round impact.

Key Features

  • Striking architectural evergreen foliage with a bold, upright form

  • Forms a large, clump-forming perennial, perfect as a focal point

  • Tall flower spikes with tubular dull red flowers in summer

  • Excellent choice for coastal and exposed gardens

  • Low-maintenance once established

  • Suitable for borders, gravel gardens and modern landscapes

Product Description

Phormium tenax is a robust evergreen perennial forming a substantial clump of dark grey-green, strap-shaped leaves. The bold foliage creates instant structure and works beautifully as a statement plant in both traditional and contemporary garden designs.

During summer, mature plants send up impressive panicles reaching up to 4 metres tall, carrying tubular, dull red flowers around 4cm long. These dramatic flower stems rise well above the foliage, adding height, movement and architectural interest.

Thriving in full sun or partial shade, New Zealand flax prefers well-drained soil and performs especially well in coastal or exposed positions. Its tolerance of wind and salt makes it a reliable and long-lasting choice for challenging garden conditions.

Specifications

  • Plant type: Evergreen perennial

  • Botanical name: Phormium tenax

  • Common names: New Zealand flax, common flax lily

  • Ultimate height: 2.5–4 metres (including flower spikes)

  • Ultimate spread: 1.5–2.5 metres

  • Time to ultimate height: 10–20 years

  • Foliage colour: Dark grey-green

  • Flower colour: Dull red

  • Flowering period: Summer

  • Soil type: Loam or sand

  • Soil moisture: Moist but well-drained or well-drained

  • Soil pH: Acidic, neutral or alkaline

  • Position: Full sun or partial shade

  • Aspect: North, south, east or west-facing

  • Exposure: Exposed or sheltered

  • Hardiness: H5 – hardy throughout most of the UK, down to -15°C

Care Tips

  • Plant in well-drained soil to prevent winter waterlogging

  • Water regularly during the first growing season to establish roots

  • Remove old or damaged leaves at the base to maintain appearance

  • Apply a mulch in spring to conserve moisture and suppress weeds

  • In colder areas, protect young plants from severe winter conditions

Call to action
Perfect for adding bold structure and year-round interest, Phormium tenax is an excellent choice for statement planting—add this striking evergreen to your garden for lasting impact and architectural style.

The plant's growth rate and size will vary depending on planting position & conditions, and bloom, foliage and interest may vary from photo upon delivery, dependant on season.

Delivery Note: Please note that unfortunately we are currently unable to deliver plants to Northern Ireland.

About Us

We are a family run, independent Garden Centre, Farm Shop and Restaurant combined. We are proud to offer the very best gardening, home and outdoor living products alongside delicious, fresh, locally produced food and drink.

Awarded 'Best Garden Centre in the UK in 2018 & 2021 you can rest assured that we offer excellent products, plants and customer service.

Learn more about us and our story on the 'About Us' page.

Delivery

Collect your order in-store, have it delivered to your door, or choose a convenient InPost Locker!

We aim to dispatch orders as quickly as possible using trusted couriers.

Your Questions Answered...

What are the delivery options and prices?

We offer Standard (3-5 working days) and Express (1-2 working days) delivery for a small additional charge.

- Postable items (e.g., seed packets, gift cards) - £2.95 via Royal Mail.
- Smaller, lighter items - £4.95 – £6.95.
- Larger, heavier, and fragile items - £9.95 – £19.95.
- Pallet deliveries (e.g., furniture) - from £69.95 (see kerbside pallet delivery details below).

The exact delivery charge is calculated at checkout based on your selected items.

New! Deliver to InPost Locker

Instead of home delivery, choose to collect your parcel from an InPost Locker near you.

- Delivery rates: £3.95 or £4.95 depending on item size.
- How it works: Choose InPost after completing your order. You'll receive a notification when your parcel is ready to collect.
- Collection options: Scan the QR code or open the locker remotely via the InPost app. If collecting from a shop, show your QR code to the staff.
- Collection time: You have 3 days to pick up your parcel. InPost will send a reminder 24 hours before expiry.
- Tracking: Track your parcel via the InPost app or the tracking link in your confirmation email.

Can someone else pick up my parcel?

Yes! Share your QR code or collection code (sent via email) along with your mobile number, and they can collect it for you.

Do I need ID to collect from an InPost Locker?

No, just scan the QR code in the app or your email. For InPost Shop collections, show the QR code to the staff.

Any more questions?

Visit InPost’s [help page](#) for more details or check their blog for tips and updates.

How do I track my delivery?

Once your order is dispatched, you'll receive an email with tracking details.

Who delivers my order?

Depending on size and weight, orders are delivered by Royal Mail, Evri, or Parcelforce. Furniture and large items arrive via kerbside pallet delivery.

What is kerbside pallet delivery?

Large items like furniture are delivered on a pallet using a heavy goods vehicle. The pallet is placed at the nearest safe kerbside location. The driver cannot move it across uneven ground or remove the items from the pallet.

We can arrange a delivery date that suits you. If access for large vehicles is difficult, please let us know in advance.

What should I do if my order arrives damaged?

If your order is damaged in transit, email us a photo and your order number within 24 hours so we can resolve the issue.

Do you deliver to Northern Ireland?

Yes, though some larger or heavier items may incur a surcharge. Unfortunately, we cannot ship plants to Northern Ireland at this time.

Do any UK areas have a delivery surcharge?

Additional delivery charges may apply for:
- Channel Islands
- Northern Ireland
- Scottish Highlands & Islands
- Isle of Man & Isle of Wight
- Scilly Isles

What is the warranty on my purchase?

All products come with a manufacturer’s warranty (typically 12 months unless stated otherwise). Faulty items within the warranty period may be repaired or replaced subject to the manufacturer’s terms.

Still have questions?

Contact us via our enquiry form, call 01497 847055, or email shoponline@oldrailwaylinegc.co.uk.

Returns

How do I return an item?

If a purchase is no longer required you are able to return the goods within 28 days of delivery for a full refund in accordance with our refunds policy set out in Clause 10 of our Terms & Conditions. We will refund any money received from you using the same method originally used by you to pay for your purchase. Please make sure that you include the sales order or invoice with your return.

When returning items to us, please ensure that any and all original packaging, instructions, tags etc are included as supplied to you. We recommend using a recorded/insured service to return your order. The Old Railway Garden Centre cannot be held responsible for returned items lost or damaged in transit to us.