How to Grow Harakeke
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Harakeke
Phormium tenax
shrubHarakeke is a striking ornamental shrub native to New Zealand, featuring long, sword-like evergreen leaves that can reach 2-3 meters in height. It produces dramatic tubular flowers in shades of red, orange, or yellow arranged in tall spikes, followed by distinctive seed pods. The plant is valued for both its architectural foliage and fiber-producing capabilities, with leaves traditionally used for weaving.
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Example Harakeke timeline · Pittsburgh, PA (Zone 6b)
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Plant Harakeke
Around Apr 17Near Pittsburgh's average last spring frost.
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Tend & protect
Late spring–summerWatering, feeding, and pest-watch reminders.
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Harvest Harakeke
Late summer into fallBefore the first fall frost (≈ Nov 8)
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Growing Conditions
Soil
Growing Zones
Find your zone →Thrives in zones 9-11; hardy to zone 8b with protection
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Establishment
3-6 monthsYoung plant with 3-5 leaves, developing root system
Water regularly to encourage root establishment; protect from strong winds; mulch around base to retain moisture
Vegetative Growth
12-18 monthsPlant produces new leaves continuously; foliage mass increases; may reach 1-2 meters height
Maintain consistent watering; apply balanced fertilizer in spring and early summer; remove any damaged outer leaves; support with stakes if in windy location
Flowering
8-12 weeks per flowering cycle; may flower multiple times per year in warm climatesTall spikes emerge with tubular flowers in red, orange, or yellow; flowers arranged along spike
Provide regular watering; avoid fertilizers high in nitrogen which promotes foliage over flowers; stake tall flower spikes in exposed locations; deadhead spent flowers to encourage continued blooming
Seed Production
4-8 weeks maturationFlowers fade and distinctive elongated seed pods develop; pods mature and dry over time
Leave pods on plant for ornamental value and seed dispersal; allow pods to fully dry before removing if collecting seeds; seeds can self-sow in ideal conditions
Maintenance Phase
Ongoing, plant lives 20+ yearsEstablished mature plant 2-3 meters tall with dense foliage; regular flowering and year-round presence
Remove dead or damaged leaves at base; thin out congested growth in spring; minimal fertilizing needed; monitor for pests; in colder zones, prune back and mulch heavily before winter
Companion Planting
Plan your garden →Plant with:
Avoid planting near:
Common Pests
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Spray with neem oil or horticultural soap; prune heavily infested foliage; improve air circulation
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Remove with alcohol-soaked cloth; spray with insecticidal soap; apply neem oil in early morning
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Increase humidity and water spray on foliage; apply neem oil; ensure good air circulation
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Remove affected leaves; improve drainage and air circulation; avoid wetting foliage; apply fungicide if severe
Uses
Traditional Māori Weaving
CraftHarakeke leaves have been used for centuries by Māori people to create baskets, mats, and textiles through traditional weaving techniques. The long, flexible leaves provide excellent material for intricate patterns and designs. [source]
Fiber Production
HouseholdThe strong cellulose fibers within harakeke leaves can be processed into cordage, rope, paper, and cloth. Historically and in modern times, harakeke is processed commercially for textile and paper applications. [source]
Root Food Source
CulinaryThe fibrous roots were historically cooked and eaten by Māori people as a source of nutrition and fiber. Though rarely used today, they represent an traditional food source in Polynesian cuisine. [source]
Architectural Landscaping
OrnamentalThe dramatic sword-like foliage and tall flower spikes make harakeke an exceptional focal point in contemporary and tropical gardens. It provides structural interest, height variation, and movement in landscape designs. [source]
Nectar for Pollinators
WildlifeThe tubular flowers attract native birds, particularly honeyeaters, and various pollinating insects. It provides a valuable nectar source, especially in gardens with limited flowering plants. [source]
Harvest Tips
Harakeke is not harvested in the traditional sense but rather cultivated for foliage and flowers. For traditional fiber harvesting, select mature outer leaves (typically 3-4 years old) and strip carefully from the base. Harvest flowers for arrangements when fully open. Collect seeds from mature, dried pods. For ornamental purposes, remove dead or damaged foliage year-round; prune back in spring before new growth.
Fun Facts
- 🌱 Harakeke is the Māori name for Phormium tenax; 'hara' refers to the leaves while 'keke' means basket, literally 'basket leaves' in the Māori language.
- 🌱 The plant can live 20-50+ years and actually improves with age, developing thicker leaves and more prolific flowering as it matures.
- 🌱 In traditional Māori culture, harakeke was so valued for fiber that it was often cultivated near settlements and was one of the few non-food plants intentionally propagated and maintained.
Gardening Terms
New to gardening? Learn about terms used in this guide:
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