New Zealand Flax Phormium Platts Black
New Zealand Flax Phormium Platts Black

New Zealand Flax Phormium 'Platt's Black'

Explore our new range of hardy phormiums and add drama to your pots and borders
  • A compact, fully hardy phormium with dark chocolate-black leaves
  • New Zealand flax, 'Platts Black' 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, and superb in a pot
  • A stately form ultimately growing to 100cm, supplied as a well-established plant in a 3L pot

Product options:

3L Pot
Item: 510838
3L Pot - Item: 510838
ONLY £14.99
Usually despatched within
3-5 working days.
Usually despatched within
3-5 working days.
Key Points
Full Product Details

Product Information

Also known as New Zealand Flax, Phormium 'Platts Black' is a robust, fully hardy evergreen which forms a dense clump of upright, strappy leaves that are a deep chocolate-purple - a really great plant for adding a bit of a statement to your garden.

Stunning in a border and stylish in a large container, this phormium plant is a compact form - meaning that it won't overshadow everything in your garden plus you can grow it in a pot!

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 'Platts Black' needs virtually no maintenance it may even reward you with spikes of red flowers in late summer. Ultimately growing to around 100cm x 60cm, we supply well-established plant in a 3L pot ready for immediate planting.

What Is Supplied

Item 510838 supplied as:
Ultimately growing to around 100cm x 60cm, we supply well-established plant in a 3L pot ready for immediate planting.

Plant Care Information

Perfect In Pots
Perfect In Pots
Plant In Sunshine
Plant In Sunshine
Winter Hardy
Winter Hardy
Easy To Grow
Easy To Grow

Top Tips

Protect young plants with a thick mulch over winter to protect the crown.

Care Information

Planting Advice for your Phormium 'Platts Black':

  • Grow Phormiums in a sunny, sheltered site in well-drained soil.  Protect from frost and winds.
    Dig a planting hole 3 x wider than the roots of the shrub you're planting and mix some well-rotted compost or manure with the soil from the hole and use this to re-fill once the shrub is in place.
  • We've found that a square hole is better than a round one as the new roots, once they reach the edges tend to grow in a circle round the circumference of the hole whereas when they reach the corners of a square hole, they find it easier to grow through.
  • Before planting soak container-grown shrubs thoroughly and allow to drain.
  • Remove the plant from its pot and tease out a few of the roots.
  • Add Mycorrhizal fungi to the roots when planting to help plants establish quicker.
  • Place your shrub in the hole at the same level at the pot and refill the hole with the earth removed (backfilling).
  • Firm in the soil with your heel, avoiding the root ball and then water well.
  • Mulch around the base of the plant with a collar, compost, gravel, bark etc.
  • If you're planting into pots, place some old rocks, stones or gravel in the bottom of the pot for drainage and ballast.
  • Use the best compost you can buy and some sand or grit for drainage.

Aftercare advice for Phormium 'Platts Black':

  • Keep plants well-watered while they establish, especially if planted up in a pot.
  • Hardy to -5C, protect from cold winds as it is these that tend to cause the most damage to young plants.

Pruning Advice for Phormiums:

  • Phormiums require no special pruning; only occasional maintenance is needed to remove any growth that has been damaged over winter.

Planting/Flowering Calendar

Best Time To Plant
When Your Plant Will Flower
When Your Plant Will Fruit
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

Fully Grown Plant Dimensions (approx)

Plant Dimensions
100 cm
60 cm
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1. If you're not totally happy with your order, return it within 30 days and we'll replace or refund in full!
2. Should any hardy plant fail to thrive thereafter, we'll replace free of charge - you just pay the P&P
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