Phormium tenax ‘Variegatum’ (New Zealand Flax)

Another for the Exploding Garden – with cream variegated leaves. Phormiums do best on heavy clay. Irresistible – even to the true Variegataphobe. To 7ft with flowers to 9ft. Please contact us for stock availability and sizes.

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Glaucous, erect and spiky are the hallmarks of the New Zealand Flax (Phormium tenax). Green, soft, floppy and luxuriant are the hallmarks of the less well known Mountain Flax (Phormium cookianum). This can grow to 5ft x 3ft wide with flower spikes - topped with dark red flowers - to 9ft and is pure drama. Sometimes, this will grow bigger but being variegated, expect it to get less enormous than the green (non-variegated form)

All Phormiums (whether P. tenax or P. cookianum) are described by proper botanists as having a 'broad genetic base'. This means highly variable and incredibly unpredictable. Sow 1000 seeds and hardly any will be the same; they will vary in the way they look and their frost hardiness. This plant is remarkably frost hardy and is propagated by division - so they're all the same plant. We find the broad leafed forms of Phormium less hardy than the narrow leafed and more erect forms. A well grown one of these is an explosion. They remind me of my drawings of tanks blowing up. I haven't done a drawing of a tank blowing up for quite a while but I suspect that were I to be called upon to do one now, it would still look like a particularly fine example of a New Zealand Flax. We call them Phormium tenax. Kiwis call them Flax Bushes; usually in a slightly bored sounding voice. I know there are an awful lot of Flax Bushes in New Zealand but we still get quite excited by them back in Blighty.

Phormiums don't like shade and they're very good in the wind so exposed spots are good. Creative Maintenance on these is time consuming but worthwhile. Remove old leaves and flower spikes with sharp secateurs or a sharp knife. Sometimes the leaves on this plant can be pulled off using two hands and a good sharp tug. Look out for Mealy Bug as you go. They're an aphid that looks like a tiny white Wood Louse that loves living in the bases of all Phormiums. They produce copious quantities of white fluffy stuff which is always a dead giveaway. The plants will tolerate their presence but best to kill them if you can. Religious use of a bug gun should do the trick. Stick them with your marlin spike and they're red inside. Blood? They're related to the Cochineal beetle (they're both considered Scale Insects) which is crushed to make the red food dye Cochineal. Yuck, you may well say. Could you make pink food dye from squished mealy bugs. Probably but might not bother.

Severe frost (-4°c or below) will give the leaves a glazed look and the leaves tend to roll up. It can look terminal but it's not. They recover wonderfully well as soon as the temperature rises.

Propagated by division. Can grow to 5ft x 3ft or more in ideal conditions (rich, well drained soil and plenty of light). From a design point of view, having a source of the same plant (clones) - for mass planting - is a great boon that discerning gardeners appreciate.

One last thing : the leaves of Phormium tenax produce the strongest known natural fibre known. Get one caught round the blades of your ride on mower - even if it is a twin cylinder 16 H.P. diesel - and it'll stop it dead. There is some confusion as both Linen Flax (Linum usitatissimum - known as Flax) and New Zealand Flax (Phormium tenax - known as Flax) are used for making rope. Thank God for Latin names.

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