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New Zealand Flax

Phormium tenax

Also listed as Chlamydia tenacissima, Lachenalia ramosa

Also known as Harakeke, New Zealand Hemp, Lowland Flax

herbaceous☀️ full sun💧💧 moderate water❄ Hardy: Zone 9a – Zone 11b

Climate Match for your location

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A striking evergreen perennial with long, sword-like leaves in green, bronze, or variegated colors that form an architectural clump. It produces tall spikes of tubular flowers in red, yellow, or orange and adds dramatic texture and year-round interest to gardens.

Why grow it

New Zealand flax offers strong architectural presence and year-round foliage in cooler climates where tropical plants may not survive. Compared to ornamental grasses, it provides more rigid structural form and tolerance for coastal wind and salt spray. The flowers attract nectar-feeding birds, and the plant tolerates poor, well-drained soils where many perennials struggle.

Watch out for

In mild, wet climates, ensure good drainage to prevent root rot during dormant seasons. The sharp leaf edges can cause minor cuts during handling or maintenance work. Container-grown plants may need division every 4-5 years as they become root-bound, though established landscape plants typically persist indefinitely without division.

Overview

Form
Upright
Growth Rate
moderate
Size
3–10′ tall × 2–6′ wide
Dormancy
evergreen
Family
Asphodelaceae
FiberWindbreakErosion controlHedgerow

Native Range

New Zealand

Seasonality

Bloom Season

J
F
M
A
M
J
J
A
S
O
N
D

Season of Interest

SpringSummerFallWinter

Notable Cultivars

Jester features pink-and-green striped leaves for ornamental impact; Sundowner displays bronze foliage with pink edges. Many compact dwarf cultivars are available for smaller spaces, while species forms reach full height and are ideal for bold architectural statements.

Similar shrubs you might consider:

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Companion Planting

Plants well with