How to Grow Pohutukawa
Pohutukawa
Metrosideros polymorpha
treePohutukawa is a stunning evergreen tree native to New Zealand, famous for its vibrant scarlet-red flowers that bloom in summer. It's often called the 'New Zealand Christmas tree' because it flowers around the Christmas season in the Southern Hemisphere. This hardy, coastal tree can reach 12-15 meters tall and is highly valued for ornamental landscaping.
When should you plant Pohutukawa in your zone?
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Example Pohutukawa timeline · Pittsburgh, PA (Zone 6b)
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Plant Pohutukawa
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 Pohutukawa
Late summer into fallBefore the first fall frost (≈ Nov 8)
Sample dates for Pittsburgh, PA. Sign up to get exact Pohutukawa dates for your own zip code.
Growing Conditions
Soil
Growing Zones
Find your zone →Thrives in zones 9b-11, prefers warm coastal climates; tolerates zone 9a in protected locations
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Get my Pohutukawa timeline →Growth Stages
Seedling
2-3 monthsTiny seedlings with first true leaves; very slow-growing initially. Foliage is light green and tender
Keep soil consistently moist but not waterlogged. Provide bright, indirect light. Protect from strong winds. Maintain warm temperatures (65-75°F optimal)
Juvenile/Establishment
1-2 yearsYoung tree developing branching structure with narrow, elongated leaves. Growth is slow but steady; plant remains bushy
Reduce watering frequency as tree establishes. Water deeply but infrequently. Minimal pruning needed; light shaping acceptable. Avoid fertilizer or use very dilute applications
Vegetative Growth
2-3 yearsTree establishes strong root system and main scaffold branches. Foliage is dense and dark green; no flowers yet
Water during dry spells only once established. Prune lower branches if desired for height. Mulch lightly around base. Trees are now quite wind-tolerant
Flowering
6-10 weeksTree develops abundant flower buds in late spring/early summer. Buds are deep red before opening into brilliant scarlet-red flowers with prominent red stamens clustered at branch tips
No deadheading required. Allow flowers to naturally drop. Minimal fertilizer; avoid high-nitrogen fertilizers that promote foliage over flowers. Enjoy the spectacular display (December-February in Southern Hemisphere)
Fruiting & Seed Development
4-6 monthsAfter flowering, small fruit develops containing seeds. Fruit is initially green, turning brown as it dries. Seeds are tiny and wind-dispersed
Collect seed pods if desiring self-seeding or propagation. Allow fruit to fully mature on tree before harvest. No special care needed; tree naturally sets and disperses seed
Companion Planting
Plan your garden →Plant with:
Avoid planting near:
Common Pests
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Spray with horticultural oil or insecticidal soap. Remove heavily infested branches. Monitor regularly
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Spray with insecticidal soap or neem oil. Remove infested plant material. Less common on established outdoor trees
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Control underlying insect pests to prevent sooty mold. Wipe affected foliage with damp cloth if needed
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Ensure excellent drainage. Remove tree if severely affected; replant in well-draining location. Avoid overwatering
Uses
Iconic Landscape Feature
OrnamentalPohutukawa is prized as a statement tree in gardens, parks, and coastal properties throughout warm regions. Its brilliant red Christmas flowers create a stunning focal point and is emblematic of New Zealand identity. [source]
Nectar Source for Native Birds
WildlifeThe abundant red flowers provide essential nectar and pollen for native New Zealand birds including tui, bellbirds, and honeyeaters. In cultivation outside New Zealand, it attracts hummingbirds and native pollinators. [source]
Hardy Coastal Windbreak
HouseholdPohutukawa is exceptionally wind and salt-spray tolerant, making it ideal for coastal properties and exposed gardens where few other trees thrive. Its deep roots stabilize soil and reduce erosion. [source]
Traditional Māori Uses
MedicinalPohutukawa has been used in traditional Māori medicine for various purposes. Contemporary herbalists value its potential anti-inflammatory and antimicrobial properties, though scientific validation is limited. [source]
Floral Arrangements and Culturally Significant Specimen
CraftPohutukawa flowers are used in New Zealand floral displays and cultural celebrations. The tree itself is culturally iconic and often featured in Māori and New Zealand literature, art, and symbolism. [source]
This is not medical advice. LizPlants is not a medical resource. Always consult a qualified healthcare professional before using plants medicinally.
Harvest Tips
Pohutukawa is grown as an ornamental tree, not harvested for produce. Seeds can be collected from mature fruit pods in late summer/fall (June-August Southern Hemisphere). Allow pods to dry completely, then collect tiny seeds. No commercial harvest typical; primarily enjoyed for its display flowers
Fun Facts
- 🌱 Pohutukawa flowers are edible and have been used to make tea, nectar drinks, and garnish premium culinary dishes in New Zealand.
- 🌱 The tree can live for over 1,000 years in its native habitat; some ancient pohutukawa specimens are among New Zealand's oldest living trees and hold significant cultural status.
- 🌱 Pohutukawa is endemic to New Zealand (found nowhere else naturally) and is the official tree of the Auckland Region, reflecting its cultural importance and striking beauty.
Gardening Terms
New to gardening? Learn about terms used in this guide:
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