Phormium Black Adder Phormium Black Adder
Phormium Black Adder
Phormium Black Adder

Phormium 'Black Adder'

Supercharge your containers with dramatic, almost black, foliage.
Perfect In Pots
Plant In Sunshine
Winter Hardy
Easy To Grow
  • A compact, fully hardy phormium with lustrous, deep purple almost black leaves.
  • New Zealand flax, 'Black Adder' is a striking addition to borders and containers.
  • This evergreen, clump forming variety makes an instant garden statement.
  • Ideal for a gravel garden or a Mediterranean garden.
  • A dwarf, compact form ultimately growing to around 1.2m, supplied as a well-established plant, 0.8-1m tall in a 5L pot.
5L Pot - Item: 560481
Only £29.99
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Product Description

Also known as New Zealand Flax, Phormium 'Black Adder' is a robust, fully hardy evergreen which forms a dense clump of sword-like leaves -  a really great plant for adding a bit of a statement to your garden.

Stunning in a border and stylish in a container, this recently introduced phormium plant has particularly attractive, deep purple, almost black, lustrous foliage, and is a compact form - meaning that it won't overshadow everything in your garden.

Phormiums prefer a hot dry site (although will tolerate partial shade) and make a great candidate for a Mediterranean garden or a gravel garden where their upright leaves make a great foil for many other coloured plants.

Easy to grow, phormium 'Black Adder' is a compact form, slightly more upright than the popular ‘Platts Black’ and needs virtually no maintenance – it may even reward you with spikes of red flowers in late summer.

Ultimately growing to around 1.2m, we supply well-established plant, 0.8-1m tall in a 5L pot.

What Is Supplied

Item 560481 supplied as:
Supplied as a well-established plant, 0.8-1m tall in a 5L pot.

Plant Information

Top Tips

Grow in a silver-coloured container for the ultimate in contemporary planting.

Care Guide

  • Plants dislike cold, damp soil, so are best planted in full sun in well-drained soil, such as in a gravel or Mediterranean-style garden.
  • Avoid planting in exposed places as wind and cold will cause die-back on the leaves and stems. If damage does occur after a harsh winter (colder than -10°C), plants can be trimmed to remove dead growth, otherwise they need no pruning.
  • In colder areas they need to be given some mulch or other protection around the base of the plant in winter.
  • Other than that, really easy!
Planting / Flowering Calendar
Best Time To Plant
When Your Plant Will Flower
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Fully Grown Plant dimensions (approx)
Plant Dimensions
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Phormium 'Black Adder'
Phormium 'Black Adder'
5L Pot
Item: 560481
Only £29.99
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