How to Grow Aalii

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Aalii

Dodonaea viscosa

shrub

Aalii is a versatile, semi-woody shrub native to Hawaii and found throughout tropical and subtropical regions worldwide. It features narrow, lance-shaped, sticky green leaves and produces distinctive papery, winged seed pods that turn reddish-brown at maturity. This hardy plant is valued for ornamental appeal, erosion control, and traditional Hawaiian uses.

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Example Aalii timeline · Pittsburgh, PA (Zone 6b)

  1. Plant Aalii

    Around Apr 17

    Near Pittsburgh's average last spring frost.

  2. Tend & protect

    Late spring–summer

    Watering, feeding, and pest-watch reminders.

  3. Harvest Aalii

    Late summer into fall

    Before the first fall frost (≈ Nov 8)

Sample dates for Pittsburgh, PA. Sign up to get exact Aalii dates for your own zip code.

Growing Conditions

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Sun: Full sun, 6+ hours daily; tolerates partial shade but flowers and color better in full sun
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Water: Drought-tolerant once established; water regularly during first year. Moderate water needs—water deeply every 2-3 weeks during dry season. Reduce watering in winter. Highly salt-tolerant.
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Spacing: 36 inches
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Days to maturity: 18-24 months for mature ornamental form
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Planting depth: Surface sow seeds or plant transplants at soil line; seeds benefit from light scarification

Soil

Type: Well-draining sandy or rocky soil; tolerates poor soil
pH: 6.0-7.5
Amendments:
Perlite or coarse sand for drainage Minimal fertilizer needed; low-fertility soils acceptable Compost if soil is extremely depleted

Growing Zones

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Thrives in USDA zones 10-11; can survive briefly in zone 9b with protection

10a 10b 11a 11b

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Growth Stages

1

Seedling

2-4 weeks

Tiny green seedlings emerge with simple cotyledons; first true leaves are narrow and linear

Keep soil consistently moist but not waterlogged; provide bright light and warmth (70-80°F). Thin seedlings to prevent crowding.

2

Establishment

3-6 months

Young plant develops woody base and multiple stems; sticky, aromatic foliage becomes prominent

Water regularly to develop strong root system. Pinch growing tips to encourage bushier growth. Minimal fertilizer needed.

3

Vegetative Growth

6-12 months

Plant reaches 3-6 feet with dense, attractive foliage; no flowers yet on young plants

Prune to shape as desired. Reduce water frequency as root system deepens. Tolerates wind and salt spray well.

4

Flowering & Fruiting

4-6 months flowering and fruiting

Small inconspicuous yellow-green flowers appear in spring/early summer, followed by distinctive papery winged seed pods that mature from green to red-brown

Allow pods to mature for ornamental effect. Deadhead if you prefer to redirect energy to foliage. Flowers attract bees and beneficial insects.

5

Mature Plant

Ongoing for 20+ years

Established shrub 6-15 feet tall (depending on variety and pruning); persistent colorful seed pods and glossy foliage provide year-round interest

Prune after fruiting season to maintain shape. Drought-tolerant; reduce watering significantly. Extremely low-maintenance once established.

Companion Planting

Plan your garden →

Plant with:

Avoid planting near:

Plants requiring consistently moist soil Shade-loving understory plants that compete for space

Common Pests

  • Spray with water to dislodge; use neem oil if severe. Improve air circulation.

  • Inspect regularly; remove by hand or prune affected branches. Apply horticultural oil in dormant season.

  • Yellow sticky traps; spray neem oil or insecticidal soap on undersides of leaves.

  • Remove with rubbing alcohol on cotton swab. Spray neem oil for heavy infestations.

Uses

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Landscape & Ornamental Display

Ornamental

Aalii's distinctive winged seed pods and fine foliage make it highly valued in tropical and subtropical gardens. The colorful pods transition from green to vibrant red-brown, providing long-lasting visual interest and are popular in dried flower arrangements. [source]

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Traditional Hawaiian Food Preparation

Culinary

Hawaiian traditions used aalii leaves in cooking and as a flavoring agent. The sticky foliage imparts a subtle, slightly astringent flavor to foods and has been used in traditional preparations. [source]

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Traditional Herbal Medicine

Medicinal

In Hawaiian and Pacific island traditional medicine, aalii leaves and bark were used to treat various ailments including skin conditions and digestive issues. The plant contains compounds with potential antimicrobial and anti-inflammatory properties. [source]

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Natural Erosion Control & Windbreak

Household

Aalii's deep root system and ability to thrive in poor, sandy soils make it excellent for preventing erosion on slopes and coastal areas. Its salt and wind tolerance also make it valuable as a natural windbreak in exposed locations. [source]

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Pollinator & Wildlife Support

Wildlife

The flowers attract bees and beneficial insects, while the dense foliage provides shelter for birds and small wildlife. In its native Hawaiian habitat, it supports specialized native insects and pollinators. [source]

This is not medical advice. LizPlants is not a medical resource. Always consult a qualified healthcare professional before using plants medicinally.

Harvest Tips

Harvest mature seed pods (when fully papery and reddish-brown) for dried arrangements. Collect foliage for fresh or dried use anytime during growing season. For propagation, collect seed pods in late summer and extract seeds when fully dry; soak seeds 24 hours before planting to improve germination.

Fun Facts

  • 🌱 Aalii is native to Hawaii and has spread to warm regions worldwide, including parts of Africa, Australia, and the Caribbean. It's considered an invasive species in some regions due to its ability to thrive in disturbed, arid lands.
  • 🌱 The name 'aalii' comes from Hawaiian and means 'shrub.' In Hawaiian culture, the colorful seed pods were traditionally used in lei-making and as decorative elements in hula performances.
  • 🌱 The plant's leaves and stems are naturally sticky due to resinous compounds (viscose), which gives the species its name 'viscosa.' This stickiness helps reduce water loss in arid climates and deters some herbivores.

Gardening Terms

New to gardening? Learn about terms used in this guide:

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