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Phormium cookianum (Mountain Flax)

Wharariki, NZ Flax, Linseed

Phormium cookianum (commonly known as Mountain Flax or Wharariki) produces long and gently arching dark green leaves. This NZ native grows to 1.5 m tall and the same wide in full sun with good drainage. Phormium cookianum is used for mixed and border plantings, planting around water features, or used in coastal gardens.

The average plant height is 10 cm

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Suited to regions:All regions
Plant type:Flax and Flax like
Height:1.50 m
Spread:1.50 m
Flowering time:Summer
Tolerances:Coastal, Extended dry periods, Hardy, Wet, Wind
Garden uses:Banks, Living areas, Ponds
Garden styles:Backyard, City & Courtyard, Coastal, Frontyard, Modern, Native, Riparian
Easy to grow?Yes
Maintenance requirementsLow
Growth rateMedium

Phormium cookianum (Mountain Flax) Details

Phormium cookianum, commonly known as Mountain Flax or Wharariki, produces long and gently arching, sword-like, green leaves. Tall stems rise above the foliage to bear dull pink or yellow flowers in summer which are great for attracting birds. This NZ native flax typically grows to 1.5 m tall and the same wide with a tidy and compact habit. Mountain Flax grows best and produces the most intense leaf colourings when planted in full sun on a well-drained site. It will tolerate frost, moderate shade, coastal conditions, wind, poor soils, and cool climates. Phormium cookianum makes a fantastic addition to mixed and border plantings, and is commonly planted around water features, or added to coastal gardens. Wharariki is also well suited for mass planting on a bank and in these situations provides an impressive display.

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