Phormium tenax 'Platts Black' · Asphodelaceae

New Zealand Flax

✅ Pet-friendlyPerennial, maintaining foliage year-round.60 to 120 cm

LightFull sun.

WaterModerate watering.

DifficultyEasy

ColdWithstands light frosts down to minus 5 degrees Celsius.

Full sun.Moderate watering.EasyWithstands light frosts down to minus 5 degrees Celsius.

Description & origin

Phormium tenax 'Platts Black' is a perennial plant with dark purple sword-shaped leaves. It is ideal for gardens needing an exotic touch and color. This plant is hardy and easy to maintain, adapting well to different soil conditions.

Size

Can reach up to 120 cm in height and 90 cm in width.

Foliage

Evergreen foliage that maintains color year-round.

Flowering

This species does not produce flowers in domestic cultivation.

Detailed care

Light

Prefers full sun for optimal growth.

Soil

Tolerates a variety of soils but prefers well-drained soil.

Watering

Moderate watering, allowing the soil to dry slightly between waterings.

Temperature

Withstands light frosts but prefers mild climates.

Fertilising

Fertilize in spring with a balanced fertilizer to promote growth.

Repotting

Transplant in spring if necessary, ensuring enough space for growth.

Pruning

Remove dry or damaged leaves to keep the plant healthy.

Propagation

Propagates by division in spring.

Common problems

Root rot

Occurs in poorly drained soils. Improve soil drainage to prevent.

Yellowing leaves

May indicate overwatering. Adjust watering frequency.

Snail attack

Snails can damage leaves. Use appropriate control methods.

Uses & curiosities

In the garden

Borders
Low-maintenance gardens
Exotic gardens

Other uses

Ideal for creating color contrasts in landscaping.

Did you know…

This variety is native to New Zealand and is often used in landscaping due to its distinctive foliage.