Phormium ‘Platts Black’

New Zealand Flax

(7 customer reviews)


Phormium ‘Platt’s Black’ is a relatively recent New Zealand Flax cultivar with leaves in the most remarkable shade of purple-brown that is almost black. One of the more compact Phormiums, this has an elegant weeping habit that makes it eminently suited to growing in a pot.


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Origin: originally New Zealand, variety of horticultural origin
Genus: Phormium
Species / Cultivar: x var. 'Platts Black'
Common Name: New Zealand Flax

Plant Biography

The Phormium ‘Platts Black’ is a horticultural hybrid of the Phormium family, with spiky leaves ranging from dark chocolate to black.

A ‘dwarf’ compared to other varieties of Phormium, it can grow to 1 – 1.2 m in height.

A robust, evergreen perennial, this Phormium can become a stunning focal point in the garden, especially when combined with brightly coloured plants.

Phormium 'Platts Black'
Soil: Well drained
Soil that does not show much signs of moisture, either visibly or when handled.
Growth Rate: Medium
Expect to see moderate growth during growing season.
Final Size: Small
Will stay small enough for a desk or shelf.
Water Requirement: Low
Will grow in a drier position and is unlikely to need regular watering once established.
Maintenance: Low
Minimal skill or input needed beyond the basics, a very independent plant.
Situation: Full Sun to Full Shade
Tolerates the complete range of light levels, a very accommodating plant!
Eventual Height: 1 - 1.2m
The plant's ultimate height in typical growing conditions.
Eventual Spread: 1 - 1.2m
The plant's ultimate spread in typical growing conditions.
Hardiness: Hardy
Survives unprotected in an average winter. May need protection in extreme long frosts.
Habit: Evergreen
Always in leaf throughout the year. It won't lose all its leaves at any one time.
Lifecycle: Perennial
This plant is persistant and does not die off after flowering. It will return each season indefinitely, if provided with suitable growing conditions.

Expert Tip

It is unrivalled as a contrast plant against silver foliage plants or as a background for pretty well any flower colour you care to choose so maybe best used in a mixed border where it will have outstanding presence. The best colour will be shown in a good soil that doesn't dry completely.
Care & Size Guidance

Care & Size Guidance

The Phormium ‘Platts Black’ thrives almost anywhere in a well drained soil. From full sun to full shade, average or low moisture soils, even very poor and sandy soils don’t deter this wunderkind of a plant.

It’s a great addition to borders or planters, and it is the perfect plant for a coastal garden as it is salt and drought tolerant.

Lovely little plant. Excellent service as always from The Palm Centre.


Lovely little plant. Excellent service as always from The Palm Centre.

7 customer reviews for Phormium ‘Platts Black’

Thank you, great plants , would buy again

Donna A.

Received these two plants in good condition, still moist and a good size, very pleased with the service, communication and the plants received. Will definitely be using them again.

Deana O.

Lovely little plant. Excellent service as always from The Palm Centre.


7.5 L pot Large plants in flower and excellent condition