How to Grow Dubautia linearis
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Dubautia linearis
Dubautia linearis
shrubDubautia linearis, commonly known as Naupaka or Beach Naupaka, is a native Hawaiian shrub found primarily in coastal areas. It features small, succulent-like linear leaves and produces small white or pale flowers followed by small, fleshy fruits. This drought-tolerant plant is well-adapted to harsh, salty coastal environments.
When should you plant Dubautia linearis in your zone?
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Example Dubautia linearis timeline · Pittsburgh, PA (Zone 6b)
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Plant Dubautia linearis
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 Dubautia linearis
Late summer into fallBefore the first fall frost (≈ Nov 8)
Sample dates for Pittsburgh, PA. Sign up to get exact Dubautia linearis dates for your own zip code.
Growing Conditions
Soil
Growing Zones
Find your zone →Thrives in zones 10-11; requires warm, frost-free climates
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Get my Dubautia linearis timeline →Growth Stages
Establishment
2-4 monthsYoung nursery plant with linear leaves; minimal growth initially as root system develops
Water regularly but allow soil to dry between waterings. Protect from strong winds initially. Avoid fertilizer or use very dilute applications.
Vegetative Growth
6-12 monthsShrub develops woody stems and increases leaf density; branching becomes more apparent
Reduce watering frequency as plant establishes. Minimal pruning needed; remove dead or damaged wood. Plant is naturally slow-growing.
Flowering
Variable, often spring to early summerSmall white or pale yellow flowers appear in clusters along branches; subtle but attractive blooms
Do not fertilize heavily as this can reduce flowering. Maintain consistent but reduced watering. Plant is self-fertile but may attract native pollinators.
Fruiting
2-3 monthsSmall fleshy fruits develop after flowering; fruits are pale white to translucent, about pea-sized
Allow fruits to mature naturally; birds and native wildlife are dispersers. Do not remove fruits unless necessary for plant health.
Mature Shrub
Indefinite (long-lived perennial)Established woody shrub, typically 3-6 feet tall; dense foliage and repeat flowering cycles
Minimal maintenance. Avoid heavy pruning. Water only during extended drought. This plant requires very little intervention once well-established.
Companion Planting
Plan your garden →Plant with:
Avoid planting near:
Common Pests
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Spray with horticultural oil or neem oil; prune heavily infested branches. Natural predators like ladybugs help control populations.
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Increase humidity slightly; spray with water to dislodge. Use miticides only if severe infestations occur.
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Yellow sticky traps; spray with insecticidal soap or neem oil. Avoid excessive nitrogen fertilizer.
Uses
Native Hawaiian Habitat Support
WildlifeDubautia linearis provides food and shelter for native Hawaiian birds and insects. The fruits are dispersed by native species, making it valuable for habitat restoration and biodiversity support. [source]
Coastal Landscape & Erosion Control
HouseholdIts deep root system and salt tolerance make it ideal for coastal gardens, salt spray areas, and erosion control on sandy or rocky slopes. It requires minimal water once established, reducing maintenance in challenging coastal environments. [source]
Traditional Hawaiian Medicine
MedicinalHistorically used in Hawaiian traditional medicine (lā'au lapa'au) for various applications, though specific therapeutic compounds are not well-documented in modern literature. Further ethnobotanical research is needed. [source]
Native Plant Restoration
CraftUsed in native Hawaiian plant restoration projects and endemic plant conservation programs. Growing Dubautia linearis helps preserve this important Hawaiian endemic species. [source]
This is not medical advice. LizPlants is not a medical resource. Always consult a qualified healthcare professional before using plants medicinally.
Harvest Tips
This is not a culinary or harvest plant in the traditional sense. Seeds can be collected from mature fruits for propagation. Allow fruits to fully mature on the plant, then collect and dry seeds for storage or immediate sowing.
Fun Facts
- 🌱 Dubautia linearis is endemic to Hawaii and found nowhere else in the wild, making it a uniquely Hawaiian species.
- 🌱 The name 'Naupaka' comes from Hawaiian legend about a plant split in two by a goddess, with half on the beach (Dubautia linearis) and half in the mountains (Naupaka kuahiwi), symbolizing separation and longing in Hawaiian culture.
- 🌱 This shrub is highly adapted to coastal salt spray and can thrive in conditions where most plants fail, making it invaluable for Hawaii's coastal landscape restoration.
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