How to Grow Hawaiian Ohia Lehua
Hawaiian Ohia Lehua
Metrosideros polymorpha
treeThe Hawaiian Ohia Lehua is a native Hawaiian tree prized for its vibrant crimson, orange, yellow, or pink flowers that resemble bottle brushes. It is highly culturally significant in Hawaii and plays a crucial ecological role in native forests. This tree is adaptable to various elevations and environmental conditions, from sea level to high-altitude volcanic slopes.
When should you plant Hawaiian Ohia Lehua in your zone?
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Example Hawaiian Ohia Lehua timeline · Pittsburgh, PA (Zone 6b)
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Plant Hawaiian Ohia Lehua
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 Hawaiian Ohia Lehua
Late summer into fallBefore the first fall frost (≈ Nov 8)
Sample dates for Pittsburgh, PA. Sign up to get exact Hawaiian Ohia Lehua dates for your own zip code.
Growing Conditions
Soil
Growing Zones
Find your zone →Thrives in USDA zones 10-12; best in Hawaii and other tropical/subtropical regions
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Get my Hawaiian Ohia Lehua timeline →Growth Stages
Seedling
4-8 weeksTiny seedlings with two small cotyledons emerge; growth is extremely slow
Keep soil consistently moist but not waterlogged; provide bright indirect light; protect from strong winds and full sun exposure; maintain high humidity if possible
Juvenile
1-2 yearsSmall tree develops its first true leaves and begins establishing a root system; growth remains slow
Gradually acclimate to full sun exposure; maintain regular watering; provide protection from harsh winds; prune to encourage branching if desired
Vegetative Growth
1-2 yearsTree develops woody stem and expanding canopy; foliage becomes denser with narrow, leathery leaves
Continue moderate watering; mulch around base to retain moisture and regulate soil temperature; minimal pruning unless shaping is needed; monitor for pests
Pre-flowering
1-2 yearsTree reaches maturity with well-established canopy; flower buds begin to form, though flowering may still be several years away
Reduce nitrogen fertilizer to encourage flowering over foliage; ensure adequate sun exposure; maintain consistent moisture during dry seasons
Flowering & Maturity
Recurring annually in spring/early summerTree produces abundant bottle-brush flowers in red, orange, yellow, or pink clusters; becomes a focal point in the landscape
Maintain consistent watering during flowering for prolonged blooms; remove spent flower clusters if desired; prune only for shape after flowering; fertilize minimally to avoid excessive foliage growth
Companion Planting
Plan your garden →Plant with:
Avoid planting near:
Common Pests
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Prune heavily infested branches; apply horticultural oil in dormant season; encourage natural predators like ladybugs
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Ensure good air circulation; remove infected leaves; avoid overhead watering; may be difficult to control; plant in well-drained locations
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Improve air circulation; reduce humidity if possible; spray with sulfur or neem oil; prune dense growth
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Spray with horticultural oil or insecticidal soap; prune affected branches; maintain plant vigor
Uses
Lei-Making & Floral Arrangements
CraftThe iconic Ohia Lehua flowers are traditionally used to create beautiful leis and floral arrangements in Hawaiian culture. The flowers hold cultural and spiritual significance in Hawaii. [source]
Traditional Hawaiian Food
CulinaryHistorically, Ohia Lehua flowers have been used in traditional Hawaiian cuisine and beverages. The flowers can be steeped into teas or incorporated into local dishes. [source]
Traditional Hawaiian Medicine
MedicinalThe Ohia tree has been used in traditional Hawaiian healing practices for centuries. Various parts of the tree have been employed in folk remedies for respiratory and general wellness. [source]
Native Ecosystem Support
WildlifeThe Ohia Lehua is crucial to Hawaiian forest ecosystems, providing nectar for native Hawaiian birds like the Apapane and Iiwi. It supports native pollinators and maintains forest canopy structure. [source]
Landscape & Ornamental Value
HouseholdValued as a distinctive and culturally significant ornamental tree in tropical gardens and native plant landscapes. Its unique bottle-brush flowers and graceful form make it a prized specimen plant. [source]
This is not medical advice. LizPlants is not a medical resource. Always consult a qualified healthcare professional before using plants medicinally.
Harvest Tips
Ohia Lehua is not harvested for fruit or food but rather enjoyed for its ornamental flowers and cultural significance. Flowers can be carefully cut for lei-making or floral arrangements once the tree is mature and flowering. In Hawaiian tradition, only as much as needed should be taken, and offering respect to the tree is culturally important.
Fun Facts
- 🌱 The Ohia Lehua is one of Hawaii's most sacred trees in Hawaiian culture and mythology, featured in various Hawaiian legends and stories.
- 🌱 The tree is one of the first plants to colonize new lava flows in Hawaii, playing a pioneer role in forest succession and ecosystem recovery.
- 🌱 Ohia Lehua flowers come in multiple colors—vibrant red is most common, but orange, yellow, pink, and even bicolor varieties exist, making each tree potentially unique.
Gardening Terms
New to gardening? Learn about terms used in this guide:
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