Skip to product information
1 of 1

Phormium tenax (New Zealand Flax) seeds

Phormium tenax (New Zealand Flax) seeds

Regular price £2.55 GBP
Regular price Sale price £2.55 GBP
Sale Sold out
Tax included. Shipping calculated at checkout.

The big daddy of all the Phormiums!  This is the original species type growing up to 4m in height producing a mass of long, arching, sword shaped leaves with a red or orange margin.  In hot summers, towering flower spikes emerge from the centre of the leaves bearing beautiful red, tubular flowers.  A pretty hardy species, it may need protection with a fleece jacket when young and from prolonged frosts below -5C.

Hardy Perennial 
Height: to 4m, Spread: 2m
Position: Full sun in moist, well drained soil
Flowers: Summer

Packet of 25 seeds


Sowing Instructions: Sow at any time of the year. Sow very thinly in trays or pots of moist seed compost (eg. John Innes) and just cover the seed with sieved compost. Place in a propagator or seal inside a polythene bag and maintain an optimum temperature of 15-18C. Germination should take place in 1-6 months. Note: Germination can be very erratic, so sow thinly and prick out the seedlings as they become large enough to handle disturbing the rest of the compost as little as possible.

Growing Instructions: Transplant seedlings when large enough to handle into 7.5cm pots. Grow on in a coldframe and over-winter at a temperature of about 5C. Harden off in spring and plant out when all risk of frost has passed 50cm apart in a sunny site in well-drained soil. 

View full details

Collapsible content


RP Seeds delivery - £1.35 and free on orders over £25  

We offer prompt order dispatch within 1-2 working days by Royal Mail.  Delivery time will normally be within 2-3 days but may vary due to the current situation.

Shipping is only £1.99 and FREE on orders over £30

Due to phytosanitary regulations we are unable to send seeds outside the UK.  If a mail forwarding service in the UK is used to send your order abroad, please be aware that we will not take responsibility for orders confiscated by customs.


If an order is returned to us as undelivered by the postal service, we will refund the cost of the products purchased, not the delivery charge. When a service other than standard delivery is used, we will also deduct this from the refund (eg. signed for, special delivery or courier charges).  It is the customer's responsibility to ensure the delivery address on the order is correct. 

Please report any orders delivered damaged or incorrect, and any missing orders not delivered within 14 days of the order date by emailing us:




All our seed packaging and most of our postal packaging is paper based and can be recycled.

More Information

Store seeds in a cool, dry place.